## PHYS208 Fundamentals of Physics II

### Hint for Ch. 33, 47E

a) - b)
Set the arguments of the sine function for emf and current to *pi*/2 to find the maximum
value.

c) Does the current lead or lag the emf? or is it in phase?

d) The ratio of the emf magnitude to the current magnitude is the impedance of the circuit.
Use the appropriate formula for the contribution to the impedance for the circuit
element determined in part c).

"http://www.physics.udel.edu/~watson/phys208/exercises/hints/33-47E.html"

Last updated Dec. 3, 1997.

Copyright George Watson, Univ. of Delaware, 1997.