The figure below shows a flexible loop of metal wire with a radius of 13.0 cm. It lies in a magnetic field pointing into the page with a magnitude of 0.140 T. A lab TA grabs the loop at points A and B and rapidly pulls in opposite directions until the loop folds up, such that its area becomes zero. The change in area occurs in a span of 0.240 s. A В What is the average induced emf (in mV) in the loop over this time span? mV

The figure below shows a flexible loop of metal wire with a radius of 13.0 cm. It lies in a magnetic field pointing into the page with a magnitude of 0.140 T. A lab TA grabs the loop at points A and B and rapidly pulls in opposite directions until the loop folds up, such that its area becomes zero. The change in area occurs in a span of 0.240 s. A В What is the average induced emf (in mV) in the loop over this time span? mV

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 figure below shows a flexible loop of metal wire with a radius of 13.0 cm. It lies in a magnetic field pointing into the page with a
magnitude of 0.140 T. A lab TA grabs the loop at points A and B and rapidly pulls in opposite directions until the loop folds up, such that
its area becomes zero. The change in area occurs in a span of 0.240 s.
A
B
What is the average induced emf (in mV) in the loop over this time span?
mv

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