In Fig. 30-36, a wire forms a closed circular loop, of

Problem 5

In figure, a wire forms a closed circular loop, of radius R = 2.0 m and resistance 4.0 1. The circle is centered on a long straight wire; at time t = 0, the current in the long straight wire is 5.0 A rightward. Thereafter, the current changes according to i =5.0 A % (2.0 A/s2 )t 2 . (The straight wire is insulated; so there is no electrical contact between it and the wire of the loop.) What is the magnitude of the current induced in the loop at times t >0?

                                                          Step by Step Solution

Step1 of 2

The field(due to the current in the straight wire) is out of the page in the upper half of the circle and is into the page in the lower half of the circle,producing zero net flux,at any time.