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Chapter 29: Q. 3 (page 796)

The wire is broken on the right side of the circuit in FIGURE Q28.3. What is the potential difference V1-V2between points 1and2? Explain.

Short Answer

Expert verified

The potential difference between the two points is given by∆V12=3V

Step by step solution

01

Given information and formula used 

Given :

The wire is broken on the right side of the circuit in the given figure :

Theory used :

Ohm's law, description of the relationship between current, voltage, and resistance. The amount of steady current through a large number of materials is directly proportional to the potential difference, or voltage, across the materials.

02

Determining the potential difference between points 1 and 2

The resistor creates a voltage drop for the battery when the wire is connected, and the current flowing through the resistance is determined by Ohm's equation as I=3V3Ω=1A

The current through the resistance is zero, that isI=0when the wire is broken, and there is no voltage drop for the battery.

Hence the two points 1and2have the same potential difference as the battery. So

∆V12=3V

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Most popular questions from this chapter

A 2.5-m-long, 2.0-mm-diameter aluminum wire has a potential difference of 1.5V between its ends. Consider an electron halfway between the center of the wire and the surface that is moving parallel to the wire at the drift speed. What is the ratio of the electric force on the electron to the magnetic force on the electron?

Particle accelerators, such as the Large Hadron Collider, use magnetic fields to steer charged particles around a ring. Consider a proton ring with 36 identical bending magnets connected by straight segments. The protons move along a 1.0-m-long circular arc as they pass through each magnet. What magnetic field strength is needed in each magnet to steer protons around the ring with a speed of 2.5×107m/s ? Assume that the field is uniform inside the magnet, zero outside.

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a. Find expressions for three magnetic fields: within the inner conductor, in the space between the conductors, and outside the outer conductor.

The right edge of the circuit in FIGURE EX29.35 extends into a 50mTuniform magnetic field. What are the magnitude and direction of the net force on the circuit?

What are the magnetic field strength and direction at points a to c in FIGURE EX29.14?
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