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Electric Circuits

Electric Circuits
In RLC parallel network R = 2 Ohm, L = 2mH and C = 1μF. Find the value of time constant?

 4 μsec
 2 μsec
 2 msec
 4 msec

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Electric Circuits
In an AC circuit, containing pure inductance, the voltage applied is 120 V, 50 Hz while the current is 10 A. Find the value of inductance.

 38 mH.
 35 mH.
 30 mH.
 34 mH.

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Electric Circuits
Inductor does not allow the sudden change of

 voltage
 current
 power
None of these

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Electric Circuits
Which of the following are typical resistance and power-dissipation values for a carbon-composition resistor?

 10 ohm, 50 W.
 10000 ohms, 10 W.
 5000 ohms, 100W.
 1000000 ohms, 1 W.

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Electric Circuits
Super mesh analysis is used in case of

 current source branch is common for two meshes.
 either 1 or 2.
 ideal voltage source is connected between two non reference nodes.
 both.

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Electric Circuits
Types of rotating machines

 synchronous machine.
 both B and C.
 IM.
 transformer.

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