2. The heating element of an electric broiler dissipates 24,000 W of power when connected to a potential difference of 120 V. What is the resistance of the element?

Q: 1. How much voltage would be necessary to generate 10 amps of current in a circuit that has 5 ohms…

A: As per company policy, we are restricted to solve one question at a time. Please ask other question…

Q: 9. A household water heater has a resistance of 30 Ohm. The operating voltage is 220 V. Find the…

A: Resistance of water heater (R) = 30 Ohm Operating voltage (V) = 220 V We are required to find the…

Q: 3. Which of the following statement is true? a) Current can exist without voltage c) Current can…

A: Without any voltage in a circuit, the current cannot exist, because the voltage makes the current…

Q: 4. A 110 volt wall outlet supplies power to a strobe light with a resistance of 2200 ohms. How much…

A:

Q: 2. A power transmission line is made of copper 1.80cm in diameter. Find the resistance of one mile…

A:

Q: 2. A copper-nickel alloy called constantan has a resistance of 8.55 X 10 4 mQ at 20.0 °C. What is…

A:

Q: A heater is rated as 240 V, 10 kW. How much current does it draw?

A:

Q: 25. If a lamp has a resistance of 120 Q when it operates at 100 W, what is the applied voltage? а.…

A: Power is defined as the rate at which work is done and it is given in watts. Power is required to…

Q: Brass ( L= 1m, d=0.5mm) Constantan( L= 1m, d=0.5mm) V (V) 0.4 V (V) I (А) I (A) 0.1 0.27 0.15 0.2…

A: Ohm's law states that the current flowing through a conductor is directly proportional to the…

Q: 4. Which wire would you want to use in the heating element of an electric kettle? Why? 5. Good…

A:

Q: 7. The resistance of a uniform copper wire 50.0 meters long and 1.15 mm in diameter is 0.830 ohms at…

A: 7. Given data: Length of wire is, L=50.0 m. Diameter of wire is, d=1.15 mm=1.15×10-3 m. Resistance…

Q: 4. The heating element of an electric coffee maker operates at 120 V and carries a current of 2.00…

A: Given: The voltage of the heating element of the coffee maker is 120 V. The current which the…

Q: 3. The charge passing through a wire is q = (80t + 20) C. What is the current?

A:

Q: 1.A copper wire has a resistance of 15.0Ω at a temperature of 14°C. After a current passes through…

A: Given data: Original resistance of copper wire is, Ro=15.0 Ω. Initial temperature is, Ti=14∘C. Rise…

Q: 5. The temperature of a sample of tungsten is raised while a sample of copper is maintained at…

A:

Q: (2) How would you expect the resistivity of a good insulator such as glass or polystyrene to vary…

A: (2) In case of insulator ,  resistivity decreases on increasing the temperature but for conductor…

Q: 7. Which of the following most likely has the largest resistivity? A. Plastic Bottle B. Silver C.…

A: Resistivity is defined as the property of material that tell us how strongly the material resists…

Q: 1.When lighted, a 100-watt light bulb operating on a 110-volt household circuit has a resistance of

A: As per guideline I m solving the first one, relation between power and resistance.

Q: 1) A 100 km long high-tension power line is made of aluminum. It has a conductor that is 2.5 inches…

A: Given data: The length of the power line is L=100 km The diameter is d=2.5 in=0.063 m The potential…

Q: . An electric heater is constructed by applying a potential difference of 120 V across a Nichrome…

A: Question:-2)  An electric heater is constructed by applying a potential difference of 120 V across a…

Q: 3. If a barrel plating run uses 200.0 A for exactly 6 hours for an electroplating application at…

A: Power is given by  P = V I

Q: 4. What will happen to current passing through a conductor if potential difference across it is…

A: 3. The wrongly connected equipment in above diagram is ammeter.The correct combination will be…

Q: 21. At what temperature will aluminum have a resistivity that is three times the resistivity copper…

A:

Q: 1. The essential component of a toaster is an electrical element (a resistor) that converts…

A: Given Power of toaster = P = 12 W Voltage drop = 110 V We have to calculate current

Q: 2. Calculate the (a) resistivity and the (b) conductivity of a material that has a length of 15 m…

A: (a) The expression for the resistance of a material is written as, Here, ρ, L and A represent the…

Q: 2. An unusual alloy has a resistivity of 4 x 10-8 ohm meters. Suppose that a hollow pipe is made…

A:

Q: 2. How much current is flowing when 15 C pass a specified point in 5 s?

A: Given, Charge flowing from the point, Q = 15 C time, t = 5 s

Q: 2. The heating element of a flat iron provides a resistance of 32 n when plugged into a common 220 V…

A: Given: The resistance is 32 ohms. The voltage is 220 V.

Q: A particular wire has a resistivity of 3.9 x 108 n - m and a cross-sectional area of 2.7 x 10° m2. A…

A:

Q: ☐☐ 41. An airplane deicer melts 0.10 kg of ice from the wings of an airplane each minute. The deicer…

A:

Q: 17.3   Birds resting on high-voltage power lines are a common sight. The copper wire on which a bird…

A:

Q: 3. How resistance and resistivity get effected by temperature. If there is iron wire at room…

A:

Q: 26. A copper conductor of circular cross section 5 mm in diameter is 10 m long. Calculate its…

A: Resistance of a wire is directly proportional to the length of the wire l and inversely proportional…

Q: Why does the resistivity of superconductors become zero

A: In a superconductor, below the critical temperature, the electrical resistance falls to zero.

Q: 2. Which physical properties of the olmic materials determine the magnitude of their resistance?

A: we know that, resistance is defined as : R = ρL/A

Q: 1. If electricity costs 15 Bz per kilowatt-hour, how much does it cost to operate a 220 V water…

A: As per guidelines, question 1 is answered. For the remaining question to be answered, post that…

Q: A silver wire has a resistance of 2.1 Ω at 27.5 °C, and a resistance of 2.7 Ω at 100 °C. Determine…

A:

Q: 2. Calculate the (a) resistivity and the (b) conductivity of a material that has a length of 15 m…

A: Current is defined as the rate of flow of charge carriers per unit time. The direction of the…

Q: 2. The resistance of a certain conductor , 320 mil diameter and 21 ft long is 220 x10^-3 2.…

A:

Q: When a potential difference of 12 V is applied to a given wire, it conducts 0.45 A of current. What…

A: Potential difference, ∆V =12 V Current flown, I = 0.45 A Let resistance of the wire be R.

Q: 3. Determine the resistance of a 1-mile length of 12-gauge copper wire. Given: 1 mile = 1609 meters…

A: Since both questions are different, As per Bartleby guidelines I can answer only 1st one.    Thanks!…

Q: 3. A current of 200 mA flows for 2 minutes. How much charge has passed?

A:

Q: 3. An operating lamp draws a current of 0.50 ampere. How much charge passes through the lamp in 10…

A: 3- Given: Current through operating lamp, i=0.50 A Time, t=10 s To determine charge passes through…

Q: 4. A copper wire has a resistance of 15.00 at a temperature of 14°C. After current passes through…

A: Given data: The resistance of the copper wire at a temperature of 14 °C, Ri=15 Ω. The temperature…

Q: 29 - The power rating of the heater a Nichrome wire that has a total resistance of (8 N ) and…

A: Given : R = 8 Ω I = 5 A

Q: 9- An electric devices draws a current of 650 HA at 8 V. How much power does the device require? O…

A: Current (I) = 650 μA Potential Difference (V) = 8 V

Q: 37. A resistor is made from a material that has a temperature coefficient of resistivity of 2.0 x…

A: Write the given values with suitable variables. α=2×10-3 /°CR0=30 ΩT0=20 °CR=33 Ω Here, α, R0, T0,…

Q: Assuming 95.0% efficiency for the conversion of electrical power by the motor, what current must the…

A: The efficiency of the motor,(η)=0.95 ----(1) [Given] The voltage of the battery,(V)=12 V -----(2)…

Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.