Electric Circuits
Which of the following characteristics is/are attributed to an ideal independent voltage source?

 Independent of the magnitude of voltage supplied.
 Independent of the direction of flow of current.
 Independent of magnitude of current supplied..
 both ‘b’ and ‘d’.

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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.
 (P1 ± P2 )2.
 P1 ± P2 .

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Electric Circuits
The voltage induced in an inductor is represented as,

 product of its inductance and rate of change of current through it.
 product of its inductance and current through it.
 ratio of its inductance to current through it.
 ratio of current through it to its inductance.

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