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An a.c. circuit an inductive reactance o...

An a.c. circuit an inductive reactance of `80Omega`and a pure resistace of `60 Omega`. What is the impendance of the circuit?

A

`20 Omega`

B

`120 Omega`

C

`140 Omega`

D

`100 Omega`

Text Solution

Verified by Experts

The correct Answer is:
D
`Z = sqrt(R^(2)+(X_L)^(2)) = sqrt(80^(2)+60^(2)) = 100 Omega`.
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MARVEL PUBLICATION-ELECTROMAGNETIC INDUCTION AND ALTERNATING CURRENTS -TEST YOUR GRASP - 16
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