Electric Circuits
If all the elements in a particular network are linear, then the superposition theorem would hold, when the excitation is

 An Impulse
 AC only
 Either AC or DC
 DC only

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Electric Circuits
What is time period T?

 Time taken by an alternating quantity to complete the (+)ve half.
 Time taken by an alternating quantity to complete one full cycle.
 Time taken by an alternating quantity to reach the peak value.
 Time taken by an alternating quantity to complete the (-)ve half.

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Electric Circuits
A certain network consists of large number of ideal linear resistances, one of which is designated as R and two constant ideal source. The power consumed by R is P1 when only the first source is active and P2 when only second source is active. In both sources are active simultaneously then the power consumed by R is

 (√P1 ± √P2)2.
 (P1 ± P2 )2.
 √P1 ± √P2.
 P1 ± P2 .

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