- #1

vizakenjack

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## Homework Statement

A flexible wire loop has a radius of r = 0.178 m and it is inside a uniform magnetic field of B = 0.332 T. The loop is grasped at points P and Q and stretched until its area is zero. It takes 0.146 s to close the loop.

## Homework Equations

EMF = ∆Phi/∆t

Phi = magnetic flux

## The Attempt at a Solution

Used the formula above.So where is current induced? In the wire? Due to the change in magnetic field then? Or magnetic flux? How do I find its direction... I mean, I know if you have magnetic field, then you use right hand rule, right? Anyway, how do I find direction here?