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Chapter 32: Q. 36 (page 925)

For what absolute value of the phase angle does a source deliver 75%of the maximum possible power to an RLC circuit?

Short Answer

Expert verified

The phase angle of RLC circuit is30掳.

Step by step solution

01

Given Information

We are given that the source deliver is 75%.

and We have to find out the phase angle of RLC circuit.

02

Formula Used

Now use the formula,

P=(Irms)(Vrms)cos2蠒

where P=75%

and P=75100Prmslet this be equation 1.

03

Simplify

Put the value of Prmsin equation 1

We get role="math" localid="1649874818548" P=0.75(Irms)(Vrms)let this be equation 2

on comparing equation 1 and 2,

We get,

0.75=cos2蠒

On solving this we get,

蠒=30掳

The phase angle of RLC circuit is30掳.

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