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Check yourself Answers

1Loop 1 has the least, and loops 2 and 3 have the same larger emf.

2

3At 0.5 s where the rate of change of flux is greatest.

4Axis Z.

5 aCounterclockwise

bClockwise

6Mathematically, power has to do with the square of the current and the average of that is not zero. Physically, the electrons making up the AC current oscillate back and forth and in so doing collide with the lattice ions just as in the DC case, generating thermal energy.

7 aIncreases by 2.

bIncreases by 4.