For a certain RLC circuit the maximum generator emf is 125 V and the maximum current is 3.20 A. If the current leads the generator emf by , (a) we have to find the impedance, (b) the resistance of the circuit. (c) We have to answer whether the circuit is predominantly capacitive or inductive.

Solution:             Click For PDF Version

From the data of the RLC circuit we note that

,

and

.

Therefore, the impedance of the circuit

It is given that the current leads the generator emf by .

As

As the current is leading the emf the circuit is predominantly capacitive.