The flexible loop in Figure has a radius of 34.5 cm and is in a magnetic field of magnitude 0.150 T. The loop is grasped at points A and B and stretched until its area is nearly zero. If it takes 0.200 s to close the loop, what is the magnitude of the average induced emf (in units of mV) in it during this time interval? B Select one: A. 161.42 B. 280.45 C. 518.50 D. 399.47

The flexible loop in Figure has a radius of 34.5 cm and is in a magnetic field of magnitude 0.150 T. The loop is grasped at points A and B and stretched until its area is nearly zero. If it takes 0.200 s to close the loop, what is the magnitude of the average induced emf (in units of mV) in it during this time interval? B Select one: A. 161.42 B. 280.45 C. 518.50 D. 399.47

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Electromagnets

The word "electromagnet" is composed of two words, ‘electro’ and ‘magnet’. It is a type of magnet in which an electric current helps in the generation of a magnetic field. Electromagnets usually consist of two major parts, wire and a coil around which the wire is wound. This is called a solenoid. When an electric current is allowed to pass through the coiled wire, the electric current produces a magnetic field. This magnetic field is present only when current is passing through the wire.

Question

The flexible loop in Figure has
a radius of 34.5 cm and is in a
magnetic field of magnitude
0.150 T. The loop is grasped at
points A and B and stretched
until its area is nearly zero. If it
takes 0.200 s to close the
loop, what is the magnitude of
the average induced emf ( in
units of mV) in it during this
time interval?
A
В
Select one:
А. 161.42
B. 280.45
C. 518.50
D. 399.47
E. 232.84

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