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thercias

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## Homework Statement

A square loop of wire is made up of 50 turns of wire, 45 cm on each side. The loop is immersed in a 1.4T magnetic field perpendicular to the plane of the loop. The loop of wire has little resistance but it is connected to two resistors in parallel as shown. (a) When the loop of wire is rotated by 180°, how much charge flows through the circuit?

(b) How much charge goes through the 5.0Ω resistor?

## Homework Equations

F = I(LxB)

B= uNI/L

V = IR

flux = BAcostheta

## The Attempt at a Solution

I'm stuck at this question and don't have a clue how to start. I think I have to somehow find the current flowing through the resistors, and somehow use that to find the charge. Can someone show me the steps to complete this problem?

My partial attempt:

flux = BA

= 1.4*0.45^2

=0.2835

emf = flux*N/t

=0.2835*50

14.175

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