Answered: 1) The magnetic field at a distance of…

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

Chapter23: Faraday’s Law And Inductance

Section: Chapter Questions

Problem 1P

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1) The magnetic field at a distance of s = 4.28 cm from a long straight current-carrying wire is 3.36 μT. What is the magnetic field at a distance of d = 1.00 cm from this wire, in 10^-6 T?

2)A flat circular loop of radius 1.49 m is rotating in a uniform magnetic field of 1.46 T. Find the magnetic flux, in T m², through the loop when the plane of the loop and the magnetic field vector are perpendicular.

3)Two long parallel wires that are 0.352 m apart carry currents of 3.87 A and 7.00 A in the opposite direction. Find the magnitude of the force per unit length that each wire exerts on the other, in 10^-6 N/m.

A variable magnetic field is perpendicular to a 142-turn coil of area 0.387 m². The magnetic field varies
in time according to B(t) = ( 10-³T)e¯, Calculate the magnitude of the induced emf (in volts) at time t =
0.612 s. Use three decimals in your answer.

The magnetic flux through a 898-turn coil depends on time according to ® (1) =
Tm2
4x 10-3.
s2
12, in which
the time is in seconds. Calculate the absolute value of the emf induced at time t = 3.96 s, in volts.

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