Electric Circuits
A circuit with resistor, inductor, capacitor in series is resonant of 50 Hz. If all the values are now doubled, the new resonant frequency is

 2f0.
 f0 / 2.
 f0 / 4.
 still f0.

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

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

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