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Electric Circuits

Electric Circuits
Which of the following is the different one in terms of measurements?

 Q
 2L/R
 RC
 L/R

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Electric Circuits
The inductive reactance of an electric circuit is 200 Ohms. The frequency of supply becomes doubled. What is the new capacitive reactance?

 200 Ohms.
 400 Ohms.
 100 Ohms.
 50 Ohms.

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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.
 still f0.
 f0 / 4.

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Electric Circuits
Consider the following circuit : Switch is closed at t = 0 Find i(0 +)

 V/R.
 V / {R + (sL + 1 / Cs)}.
 (V*L) / (R*C)
 0.

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Electric Circuits
Two resistor are said to be connected in parallel when

 total current equals the sum of branch currents.
 both carry the same value of current.
 both have the same potential difference.
 both ‘b’ and ‘c’

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Electric Circuits
In which of the following oscillations are not present?

 Over damping
 Critical damping
 Under damping
 Both 2 and 3

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