AIIMS 2015 Physics Question Paper for free online practice with solutions

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Question : 52 of 60

Marks: +1, -0

Assertion (A) : If the frequency of the applied AC is doubled, then the power factor of a series R-L circuit decreases.
Reason (R) : Power factor of series R-L circuit is given by cosθ=

2R

√R2+ω2L2

If both Assertion and Reason are true and Reason is correct explanation of Assertion.
If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
If Assertion is true but Reason is false.
If both Assertion and Reason are false.

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