2. The wires below carry currents as noted. What are I1 and I2?2 AI2I13 A4 A

Kirchhoff’s junction rule states that at any junction in an electrical circuit, the sum of the…

Answered: 2. The wires below carry currents as…

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter22: Magnetism

Section: Chapter Questions

Problem 42PE: (a) What is me maximum torque on a 150Turn square loop of wire 18.0 cm on a side that carries a...

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Integrated Concepts (a) What is the direction of the force on a wire carrying a current due east in a location where the Earth’s field is due north? Both are parallel to the ground. (b) Calculate the force per meter if the wire carries 20.0 A and the field strength is 3.00105T. (c) What diameter copper wire would have its weight supported by this force? (d) Calculate the resistance per meter and the voltage per meter needed.
The circuit in Figure P3 1.61 is located in a magnetic field whose magnitude varies with lime according to the expression B = 1.00 10-3 t, where B is in teslas and f is in seconds. Assume the resistance per length of the wire is 0.100 /m. Find the current in section PQ of length a = 65.0 cm.
What current is needed in the top wire in Figure 22.58(a) to produce a field of zero at the point equidistant from the wires, if the currents in the bottom two wires are both 10.0 A into the page?
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The force per meter between the two wires of a jumper cable being used to start a stalled car is 0.225 N/m. (a) What is the current in the wires, given they are separated by 2.00 cm? (b) Is the force attractive or repulsive?
The wire carrying 400 A to The motor of a commuter train feels an attractive force of 4.00103N/m due to a parallel wire carrying 5.00 A to a headlight. (a) How far apart are the wires? (b) Are the currents in the same direction?
Draw a sketch of the situation in Figure 22.30 showing the direction of electrons carrying the current, and use RHR-l to verify the direction of the force on the wire.
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Find the direction of the current in the resistor shown in Figure P20.16 (a) at the instant the switch is closed, (b) after the switch has been closed for several minutes, and (c) at the instant the switch is opened. Figure P20.16
(a) What is me maximum torque on a 150Turn square loop of wire 18.0 cm on a side that carries a 50.0-A current in a 1.60T field? (b) What is the torque when (is 10.9°?
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2. The wires below carry currents as noted. What are I1 and I2? 2 A I2 I1 3 A 4 A