Which wire has higher resistance if a wire of length 2m and anotherwire of length 5m are made up of the same material and have the samearea of cross section?O The 5m wire has higher resistanceO Both have equal resistanceO The 2m wire has higher resistanceThe value of resistance cannot be determined from the given data

The 5 m wire has higher resistance Resistance is directly proportional to the length of the wire,…

Answered: Which wire has higher resistance if a…

Which wire has higher resistance if a wire of length 2m and another wire of length 5m are made up of the same material and have the same area of cross section?

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter22: Electric Current

Section: Chapter Questions

Problem 92A

See similar textbooks

Related questions

Q: A piece of metal wire has a resistance of 50 ohms. When it is stretched to 3 times of its length,…

A: Resistance of wire is, R=ρlA Here, l is length of wire. So, resistance is directly proportional…

Q: An iron wiring in a mall has a diameter of 3mm. What length of iron wire would have a resistance of…

Q: the resistance of wire of radius 2 mm is 400 ohm the wire is compressed in such a way that the new…

A: The resistance of a wire of resistivity(ρ), length (L) and area (A) is given by : R=ρLA=ρLπr2…

Q: Is the resistance of a 100-W bulb greater or less than the resistance of a 60-W bulb? Assuming the…

Q: what is the current if a 10.0 C of charge passes through the cross section of a wire in 2.0 seconds?

A: we know that, current(i)= charge(q)/time(t) thus, i=10c/2s = 5A

Q: How does the resistance of a wire vary with its area of cross-section?

Q: The resistance of a conductor 1 mm2 in cross-section and 20 m long is 0.346 Q. Determine the…

A: Given Area A=1mm2=1×10-6 m2 Length L=20m Resistance R=0.346Ω

Q: The resistance of a wire is 20 Ω. What will be new resistance, if it is stretched uniformly 8 times…

A: Given: Resistance, R= 20 Ω The length of wire is stretches to 8 times its original length To…

Q: A cube of a material of side 1 cm has a resistance of 0.001 Ω between its opposite faces. If the…

A: GivenSide of cube, l1=1 cmResistance, R1=0.001 ohmSame volume of material hasLength of side, l2=8 cm

Q: Wires A and B are made of the same material and have the same length. However, the diameter of wire…

A: The resistance of a wire is given by R = ρLA where, L is the length and A is the area of cross…

Q: A 0.500-meter length of wire with a cross-sectional area of 3. 14 × 10¬6 m meters squared is found…

A: Length (l) = 0.5 m Area of cross sectional (A) = 3.14x10-6 m2 Resistance (R) = 3.885x10-3 ohm we…

Q: A metal wire has a resistance of 10.0 ohms at a temperature of 20.0°C. If the same wire has a…

Q: A copper wire which has resistance of 30 carries a current of 0.2 A. Which is the voltage of the…

A: The expression for voltage from ohm’s law,

Q: A 200-m length of copper wire has a resistance of 2.0 ohms. Its cross-sectional area is?

Q: The greatest equivalent resistance occurs when resistances are connected in which type of…

Q: A piece of silver wire has a resistance of 1 Q. What will be the resistance of a wire of one-eight…

A: Given data: Resistance of silver (R) = 1 Ω Length of wire (L') = L/8 Diameter of wire (d') = d/3…

Q: A length of wire has a resistance of 6 Ω. The resistance of a wire of the same material three times…

A: The resistance, The length of the wire is l. The area of cross-section is A.

Q: Two wires, A and B, are made of the same material. The length of A is four times the length of B.…

A: Let the length and crossectional area of wire B is lB and AB respectively then, Length of Wire A: lA…

Q: The electrical resistance of a cable varies directly as its length and inversely as the square of…

Q: A 1.1 cm length of tungsten filament in a small lightbulb has a resistance of 0.029 N. Find its…

A: Length of filament, l=1.1 cm=0.011 m Resistance, R=0.029 ohm

Q: Wires A and B are made of the same material and have the same length. However, the diameter of wire…

A: Solution: given that Wire A: dA = 3d RA = 12 Ohm Wire B: dB = d RB = ?

Q: Calculate the resistance of a 1.2 meter copper wire with a cross-sectional area of 1.0 x 10m?.

A: as per our guidelines we are supposed to answer only one question. Kindly repost other questions as…

Q: If the length and diameter of a wire of circular cross-section are both tripled what happens to the…

A: Let , the length of the wire = l Diameter of the wire = d We know that , Resistance ( R ) = ρlA…

Q: What is the resistance (in ohm) of an electrical component if a current of 0.5 A passes through it…

Q: What is the resistance (in Ω) of an electrical component if a current of 0.2 A passes through it on…

A: It is given that, V=8 VI=0.2 A

Q: What is the change in resistance of a wire which is stretched triple its length?

A: The resistance of a wire is inversely proportional to its area and directly proportional to its…

Q: How much current is flowing through a wire if 21.5 C of charge passes a point in 6.3 seconds?

A: Given data: Charge (q) = 21.5 C Time (t) = 6.3 s Required: Current (I)

Q: Calculate the equivalent resistance (in Ω) between points a and b. If a voltage of 47.4 V is…

A: The voltage applied between points a and b is 47.4 V. Initially, 12 ohm and 6 ohm are in parallel…

Q: A meter measures a current of 9.33x10^14 electrons flowing past a point each second. Express this in…

A: Let the number of electrons is denoted by n, the charge is denoted by q, and the time taken is…

Q: How does the resistance of a wire depend on its length?

Q: A wire that has a resistance of 5.0 ohms is passed through an extruder so as to make it into a new…

Q: A wire with a temperature coefficient of resistance (-0.0060/C) has a resistance of 5.64 at 20° and…

A: The two wires have the same resistance at 26.52°C temperature.

Q: Now suppose the wire in #1 were made to have a diameter half as big. What would be the resistance…

A: According to the Ohm's law , the voltage drop across a circuit is defined as the product of the…

Q: If the filament resistance in a car headlamp is 3 Ω, how many Amps does it draw when connected to a…

Q: A cube of a material of side 1 cm has a resistance of 0.001 Q between its opposite faces. If the…

A: There are different questions. According to guideline I solve only first question. Please post other…

Q: Three wires of cross sectional area 3mm2, 4mm2 and 5mm? are made up of the same material and have…

A: Electric resistance is the property of an electric component to oppose the current to pass through…

Q: If a wire of cross-sectional area equal to A has a resistance of R. Then another wire of the same…

A: Given in question: A wire of cross-sectional area(A) has a resistance (R). To find: The resistance…

Q: True or false. the longer the length of the wire, the stronger the resistance is.

A: Let the wire’s length is l, the wire’s cross section area is A and the resistivity is ρ. Evaluate…

Q: The resistance of a certain copper wire is 0.4 Ω. Determine the resistance of a tungsten wire having…

Q: Two wires have the same length and the same resistance. One is made from aluminum and the other from…

Q: 10 2 10 Q 20 2 20 Q 20 2 10 Q 30 Q

Q: Does the resistance of a wire depend on the material from which it is made?

A: The resistance of the wire is directly related to its length and in contrast to its cross-sectional…

Q: An aluminum cube has sides of length 18 m. What is the resistance between two opposite faces of the…

A: Specific Resistance (ρ) is a property of any conductive material, a figure used to determine the…

Q: Copper wiring in a house usually has a diameter of approximately 1.5mm. What length of copper wire…

A: Given data The diameter of the wire is d= 1.5 mm = 1.5 x 10-3 m The resistance of the wire is R = 1…

Q: The resistance of a certain copper wire is 0.4 Q. Determine the resistance of a tungsten wire having…

A: Here, we calculate the given as follow;

Q: Calculate the electric resistance of a gold wire 1.2 mm in diameter and 17 m long if its resistivity…

Concept explainers

Resistivity

Resistivity is a characteristic property of the conductor’s material that measures the extent to which the material opposes the flow of current. It is denoted by the Greek letter “rho”. Electrical resistivity, also known as specific resistance, depends on the nature of the material of the conductor and is unaffected by its dimensions.

Question

Which wire has higher resistance if a wire of length 2m and another
wire of length 5m are made up of the same material and have the same
area of cross section?
O The 5m wire has higher resistance
O Both have equal resistance
O The 2m wire has higher resistance
The value of resistance cannot be determined from the given data

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

Consider the circuit below. The battery has an emf of = 30.00 V and an internal resistance of r = 1,00 . (a) Find the equivalent resistance of the circuit and the current out of the battery. (b) Find the current through each resistor, (c) Find die potential drop across each resistor, (d) Find the power dissipated by each resistor, (e) Find the total power supplied by the batteries.
Check Your Understanding A strain gauge is an electrical device to measure strain, as shown below. It consists of a flexible, insulating backing that supports a conduction foil pattern. The resistance of the foil changes as the backing is stretched. How does the strain gauge resistance change? Is the strain gauge affected by temperature changes?
The severity of a shock depends on die magnitude of the current through your body. Would you prefer to be in series or in parallel with a resistance, such as the heating element of a toaster, if you were shocked by it? Explain.
Three 60.0-W, 120-V lightbulbs are connected across a 120-V power source, as shown in Figure P18.50. Find (a) the total power delivered to the three bulbs and (b) the potential difference across each. Assume the resistance of each bulb is constant (even though, in reality, the resistance increases markedly with current). Figure P18.50
Check Your Understanding The resistance between the two conductors of a coaxial cable depends on the resistivity of the material separating the two conductors, tire length of the cable and the inner and outer radius of the two conductor. If you are designing a coaxial cable, how does the resistance between the two conductors depend on these variables?
When a straight wire is heated, its resistance changes according to the equation R = R0 [1 + (T T0)] (Eq. 17.7), where is the temperature coefficient of resistivity. (a) Show that a more precise result, which includes the length and area of a wire change when it is heated, is R=R0[1+(TT0)][1+(TT0)][1+2(TT0)] where is the coefficient of linear expansion. (See Topic 10.) (b) Compare the two results for a 2.00-m-long copper wire of radius 0.100 mm, starting at 20.0C and heated to 100.0C.
Three 60.0-W, 120-V lightbulbs are connected across a 120-V power source, as shown in Figure P18.50. Find (a) the total power delivered to the three bulbs and (b) the potential difference across each. Assume the resistance of each bulb is constant (even though, in reality, the resistance increases markedly with current). Figure P18.50
Check Your Understanding Digital meters are able to detect smaller currents than analog meters employing galvanometers. How does this explain their ability to measure voltage and current more accurately than analog meters?
In Figure P21.47, show how to add just enough ammeters to measure every different current. Show how to add just enough voltmeters to measure the potential difference across each resistor and across each battery.
When a straight wire is heated, its resistance changes according to the equation R = R0 [1 + (T T0)] (Eq. 17.7), where is the temperature coefficient of resistivity. (a) Show that a more precise result, which includes the length and area of a wire change when it is heated, is R=R0[1+(TT0)][1+(TT0)][1+2(TT0)] where is the coefficient of linear expansion. (See Topic 10.) (b) Compare the two results for a 2.00-m-long copper wire of radius 0.100 mm, starting at 20.0C and heated to 100.0C.
A child's electronic toy is supplied by three 1.58-V alkaline cells having internal resistances of 0.0200 inseries with a 1.53-V carbon-zinc dry cell having a 0.100- internal resistance. The load resistance is 10.0 . (a) Draw a circuit diagram of the toy and itsbatteries, (b) What current flows? (c) How much power is supplied to the load? (d) What is the internal resistance of the dry cell if it goes bad, resulting in only 0.500 W being supplied to the load?
Digital medical thermometers determine temperature by measuring the resistance of a semiconductor device called a thermistor (which has a=0.06/C ) when it isat the same temperature as the patient. What is a patient’s temperature if the thermistor’s resistance at that temperature is 82.0% of its value at 37C (normal bodytemperature)?