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## Homework Statement

A 1000-turn loop (radius = 0.037m) of wire is connected to a (20 Ohm) resistor as shown in the figure. A magnetic field is directed perpendicular to the plane of the loop. The field points into the paper and has a magnitude that varies in time as B=gt, where g=0.25 T/s. Neglect the resistance of the wire.

http://capa-new.colorado.edu/msuphysicslib/Graphics/Gtype64/prob03a_cj22.26.gif

What is the magnitude of the potential difference between points a and b?

## Homework Equations

equation is E = -NA ((dB(t))/dt) but how do u find what t and what is B(t)?

## The Attempt at a Solution

cant attempt cause i dont know what t and B(t) are

PLEASE HELP!