1.

If the power factor is 1/10 and the value of impedance is 20 ohm, calculate the resistance in the circuit.(a) 1 ohm(b) 2 ohm(c) 3 ohm(d) 4 ohm

Answer» The correct choice is (b) 2 ohm

To explain I would say: We know that:

cos(ϕ)=R/Z

R=Z cos(ϕ) = 20/10 = 2 ohm.


Discussion

No Comment Found

Related InterviewSolutions