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Electric Circuits

Electric Circuits
In RLC series circuit, at resonance condition the value of current is

 Maximum
None of these
 Zero
 Minimum

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Electric Circuits
Find the Z parameters of the circuit shown in figure.

 Z11 = 3; Z12 = 1; Z21 = 1; Z22 = 3
 Z11 = 1; Z12 = 1; Z21 = 1; Z22 = 1
 Z11 = 2; Z12 = 1; Z21 = 1; Z22 = 2
 Z11 = 3; Z12 = 3; Z21 = 3; Z22 = 3

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Electric Circuits
Condition of symmetry in Z-parameter representation is

 Z12 = Z22.
 Z11 = Z12.
 Z12 = Z21.
 Z11 = Z22.

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Electric Circuits
A 10 Ohm resistor has power rating of 1W. Find the maximum current rating.

 0.01 A.
 0.1 A.
 0.316 A.
 1 A.

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Electric Circuits
A 20 μF capacitor and 200 W, 220 V lamp is connected in series across a 220 V alternating supply. In which frequency of the supply the lamp will glow dimmest?

 100 Hz.
 1 Hz.
 1000 Hz.
 10 Hz.

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Electric Circuits
A voltage source having an open circuit voltage of 100 V and internal resistance of 50 Ω is equivalent to a current source

 0.5 A in parallel with 50 Ω.
 2 A with 50 Ω in parallel.
 none of these.
 2 A with 50 Ω in series.

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