We desire to make a circuit which resonates at 100 Hz using an inductance L = 2.5 H.The value of the capacitance should be
A)1
B)1 mF.
C)1 µF.
D)1 pF
E)You need to know the value of R.

Question

We desire to make a circuit which resonates at 100 Hz using an inductance L = 2.5 H.The value of the capacitance should be 
A)1 
B)1 mF. 
C)1 µF. 
D)1 pF 
E)You need to know the value of R.

Quizplus · Accepted Answer

Resonant frequency formula for LC circuit is f = 1/(2π√(LC)).
Substituting given values in the formula, we get
100 = 1/(2π√(2.5 x C)).
Solving for C, we get C = 1µF. Therefore, the best choice is option C.

We Desire to Make a Circuit Which Resonates at 100