Question

In a circuit the phase difference between the alternating current and the source voltage is `pi/2`. Which of the following cannot be the element(s) of the circuit?

विकल्प

• only C

• only L

• L and R

• L or C

Answer 1

only C

Explanation:

Pure C and L are the only ones capable of providing the π/2 phase difference. However, if R is present, the phase difference will diverge from π/2.