For the shown wire segments a=12.0 cm, b=16.0 cm. the current in the long straight wire is i = 4.5t2 - 10t a) Find the electromotive force in the square loop at t=3.0 s. b) What is the direction of the induced current in the loop.

For the shown wire segments a=12.0 cm, b=16.0 cm. the current in the long straight wire is i = 4.5t2 - 10t a) Find the electromotive force in the square loop at t=3.0 s. b) What is the direction of the induced current in the loop.

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter13: Electromagnetic Induction

Section: Chapter Questions

Problem 65AP: A current is induced in a circular loop of radius 1.5 cm between two poles of a horseshoe...

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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

For the shown wire segments a=12.0 cm, b=16.0 cm. the current in the long straight wire is i = 4.5t²- 10t

a) Find the electromotive force in the square loop at t=3.0 s.
b) What is the direction of the induced current in the loop.

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