There is a potential difference of V = 20 V across a resistor with R = 50 N. What is the current throughthe resistor? A wire has a diameter of 1.0 mm and a length of 30 m, and is found to have a resistance of 1.2 2.What is the resistivity of the wire?

Answered: Image /qna-images/answer/64791899-5255-41af-acf4-577f962baf81.jpg

Answered: There is a potential difference of V =…

Science

Physics

There is a potential difference of V = 20 V across a resistor with R = 50 N. What is the current through the resistor?

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter21: Current And Direct Current Circuits

Section: Chapter Questions

Problem 5CQ: When the potential difference across a certain conductor is doubled, the current is observed to...

See similar textbooks

Related questions

Q: The figure here shows three cylindrical copper conductors along with their face areas and lengths.…

Q: When a resistor is connected to a 12 V source, it draws a 185 mA current. The same resistor…

A: Ans:- Image-1

Q: Thermal energy is produced in a resistor at a rate of 111 W when the current is 3.24 A. What is the…

A: given;- Power P = 111 WCurrent i = 3.24 A

Q: storage battery of a car has an emf of 12 V. If the internal resistance of the battery is 0.4 Ω,…

A: In the given question, EMF of the battery E = 12 V Internal resistance R = 0.4 Ω The amount of…

Q: An uncharged capacitor and a resistor are connected in series to a battery. If V=35V, C=6µF, and…

A: Maximum charge = C * V = 6 * 10-6 * 35 = 2.1 * 10-4 CoulombMaximum current = V/R = 35/8 = 4.375…

Q: If 5.0 × 1021 electrons pass through a 30.1 Q resistor in 10 min, what is the potential difference…

Q: If Q = 400 µC and the potential difference VA - VB = -10 V in the circuit segment shown below, what…

Q: A resistor dissipates 0.25 W when current of 20 mA passes through it. How much current would be…

Q: If 5.0 × 1021 electrons pass through a 42.3 Q resistor in 10 min, what is the potential difference…

A: Electric current is rate of flow of charge.

Q: Determine the magnitude of the current flowing through a 4.7 k2 resistor if the voltage across it is…

A: “Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

Q: There is a potential difference of V = 20 V across a resistor with R = 50 Ω. What is the current…

A: Given: The potential difference is 20 V. The resistance of the circuit is 50 Ω.

Q: In the figure the ideal batteries have emfs ε1 = 150 V and ε2 = 50 V and the resistances are R1 =…

A: Given that: ε1= 150 Vε2 = 50 VR1 = 3.0 ΩR2 = 2.0 ΩVP = +110 V It is required to determine the…

Q: A rod of 2.0-m length and a square (2.0 mm × 2.0 mm) cross section is made of a material with a…

A: Given data: Length (L) = 2.0 m Cross section area (A) = 2.0 mm × 2.0 mm Resistivity (ρ) = 6.0×10-8…

Q: A capacitor is charged with a total charge of q = 1.4E-05 C. The capacitor is wired in series with a…

A: Given: Total charge (q) = 1.4×10-5C resistance (R) = 14Ω decay constant, τ = 1.4×10-5 To Find: how…

Q: The current in a resistor decreases by 8 A when the voltage applied across the resistor decreases…

Q: A resistor with a potential difference of 200 V across it transfers electrical energy to thermal…

Q: In the figure the ideal batteries have emfs E, = 9.0 V and E, = 0.500 E1, and the resistances are…

A: According to Kirchhoff's first law Algebraic sum of current at a junction is zero. According to…

Q: If 5.0 × 1021 electrons pass through a 32.5 Q resistor in 10 min, what is the potential difference…

Q: If R, has a resistance twice that of Ry, determine the value of Rx and R, in the figure and the…

Q: Given is a current-versus-potential-difference graph for a cylinder. What is the cylinder’s…

Q: A resistor with a resistance of R is connected to a battery with a voltage of V to produce a current…

A: Dear student, this question contains more than three sub-parts. We will answer first three…

Q: In the circuit shown, what is the current in the 10 Q resistor if the current in the 20 2 resistor…

A: The provided circuit diagram is shown below.

Q: If 5.0 × 1021 electrons pass through a 82.3 Q resistor in 10 min, what is the potential difference…

A: Given values n = no. of passing electrons through resistance = 5× 10^ (21) Resistance = 82.3ohm…

Q: Wire C and wire D are made from different materials and have length Lc = LD = 3.2 m. The resistivity…

A: length, LC=3.2 mlength, LD=3.2 mreisitivity, ρC=4.7×10-6Ωmradius, rC=Dc2=0.505 ×10-3mcross sectional…

Q: 0.058 A of electric current is passing through a resistor, and the voltage across the resistor is…

Q: The potential difference across a resistor is 4.4 * 10 ^ 2 V If the resistance of the resistor is…

A: Given data: Potential difference V =4.4×102 V Resistance of the resistor R=1.8kΩ=1.8×103Ω

Q: If Rx has a resistance twice that of Ry, determine the value of Rx and Ry in the figure and the…

A: Given : R = 120 Ω Rx = 2 Ry

Q: The power dissipated by a resistor with a resistance of R = 100Ω is P = 2.0 W . What are the current…

A: given, resistance R = 100 Ω power dissipated across resistor P = 2.0 W Find current through the…

Q: A 1.2 kQ resistor carries a current of 15 mA. What is the potential difference (in V) across the…

A: GivenResistor (R)=1.2 k ohm= 1.2×103 ohmcurrent (I) = 15 mA=15×10-3 ALet V= Pottential difference…

Q: When the ends of a resistor are at different electric potentials, then we have set up a. resistivity…

Q: What is the resistance value of a practical resistor with color codes green, violet, black?

A: Given Data: The first band is green. The second band is violet. The third band is black. For the…

Q: A battery with an emf of 40 V and internal resistance of 0.3 Q is connected across a load resistor…

Q: The filament of a 100 W (120 V) lightbulb is a tungsten wire 0.035 mm in diameter. At the filament’s…

Q: In the figure the ideal batteries have emfs E1-9.0 V and E2-0.500 E1, and the resistances are each…

Q: When four identical resistors are connected to an ideal battery of voltage V = 10 V as shown in the…

A: Given data: The voltage of the ideal battery is V=10 V. The current in the circuit is I=0.20 A.…

Q: If 5.0 x 102' electrons pass through a 20 N resistor in 10 min, what is the potential difference…

A: Current is the amount of charge flowing per second through a conductor. I = Q/t = ne/t where, I =…

Q: In the figure the current in resistance 6 is ig = 1.38 A and the resistances are R1 = R2 = R3 = 2.01…

Q: A current of 50 mA is fed to a 100 2 resistor. What are the potential difference and power one would…

Q: Given V=IR and the current must be the same in both resistors, what is the potential difference…

Q: You measure the current through a 24.1 Ω24.1 Ω resistor to be 683 mA683 mA. What is the potential…

A: Given current I = 683mA Resistance R = 24.1 Ohm we have to calculate potential difference across…

Q: The power dissipated by a resistor with a resistance of R = 390 is P = 3.8 W. What are the current…

Q: If connected to a 3 V potential difference, a certain resistor dissipates 0.5 W. How much energy…

Q: A capacitor with capacitance C = 2.5 μF is charged to a voltage V = 5V. It is then discharged…

A: C = 2.5 μF V = 5 volts R = 100 ohm

Q: A 2.0 mm diameter iron wire ( resistivity, p = 9.7 x 10- 0-m) carries a current of 2.5 A. Determine…

A: Solution: Given that diameter = 2mm resistivity = 9.7x10-8 ohm m current = 2.5 A length = 20 m to…

Q: If 5.0 x 102 electrons pass through a 82.50 resistor in 10 min, what is the potential difference…

A: Relation between the current and charge can be stated as "current is the rate of flow of charge".…

Question

There is a potential difference of V = 20 V across a resistor with R = 50 N. What is the current through
the resistor?

A wire has a diameter of 1.0 mm and a length of 30 m, and is found to have a resistance of 1.2 2.
What is the resistivity of the wire?

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 with 2 images

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

A 0.900-V potential difference is maintained across a 1.50-m length of tungsten wire that has a cross-sectional area of 0.600 mm2. What is the current in the wire?
A 20.00-V battery is used to supply current to a 10-k resistor. Assume the voltage drop across any wires used for connections is negligible, (a) What is the current through the resistor? (b) What is the power dissipated by the resistor? (c) What is the power input from the battery; assuming all the electrical power is dissipated by the resistor? (d) What happens to the energy dissipated by the resistor?
Taking R = 1.00 k and = 250 V in Figure P27.19, determine the direction and magnitude of the current in the horizontal wire between a and e. Figure P27.19
The- pair of capacitors in Figure P28.63 are fully charged by a 12.0-V battery. The battery is disconnected, and the switch is then closed. Alter 1.00 ms has elapsed, (a) how much charge remains 011 the 3.00-F capacitor? (b) How much charge remains on the 2.00-F capacitor? (c) What is the current in the resistor at this time?
A 160F capacitor charged to 450 V is dischargedthrough a 31.2k resistor, (a) Find the time constant.(b)Calculate the temperature increase of the resistor, given that its mass is 2.50 g and its specific heat is 1.67kJ/kg °C,noting that most of the thermal energy is retained in the short time of the discharge, (c) Calculate the new resistance, assuming it is pure carbon. (d) Does this change in resistance seem significant?
Resistors are commonly rated at 18W,14W,12W ,1 W and 2 W for use in electrical circuits. If a current of1 = 2.00 A is accidentally passed through a R=1.00 resistor rated at 1 W, what would be the most probable outcome? Is there anything that can be done to prevent such an accident?
When the potential difference across a certain conductor is doubled, the current is observed to increase by a factor of 3. What can you conclude about the conductor?
Four resistors are connected to a battery as shown in Figure P21.40. The current in the battery is I, the battery emf is , and the resistor values are R1 = R, R2 = 2R, R3 = 4R, and R4 = 3R. (a) Rank the resistors according to the potential difference across them, from largest to smallest. Note any cases of equal potential differences. (b) Determine the potential difference across each resistor in terms of . (c) Rank the resistors according to the current in them, from largest to smallest. Note any cases of equal currents. (d) Determine the current in each resistor in terms of I. (e) If R3 is increased, what happens to the current in each of the resistors? (f) In the limit that R3 , what are the new values of the current in each resistor in terms of I, the original current in the battery? Figure P21.40
Ralph has three resistors, R1, R2, and R3, connected in series. When connected to an ideal emf source E1, current I1 flows through the resistors. a. If the resistors are instead connected to a second source with E2=2E1, what is the new current through the resistors in terms of the first current? b. Show that, if each resistance is doubled and the resistors are connected in series to the second emf source, the current through the resistors is equal to I1.
Consider a resistor made from a hollow cylinder of carbon as shown below. The inner radius of the cylinder is Ri= 0.20 mm and the outer radius is R0 = 0.30 mm. The length of the resistor is L = 0.90 mm. The resistivity of the carbon is =3.5105 m. (a) Prove that theresistance perpendicular from the axis is R=2L1n(R0Ri) . (b) What is the resistance?
A lightbulb is connected to a variable power supply. As the potential across the bulb is varied, the resulting current and the filaments temperature are measured. The data are listed in Table P28.38. a. Find R for each entry in Table P28.38, and then plot R as a function of T. b. Assume that room temperature is at 293 K. Find R0 (resistance at room temperature). Comment on your result.
For the network in Figure P18.60, show that the resistance between points a and b is Rab=2717. (Hint: Connect a battery with emf across points a and b and determine /I, where I is the current in the battery.) Figure P18.60