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Electric Circuits

Electric Circuits
For steady state current inductor acts as

 Open circuit
 Current source
 Short circuit
 Voltage source

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Electric Circuits
Absolute permittivity of dielectric medium is represented as

 εrε0
 εr/ε0
 ε0
 εr

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Electric Circuits
Which battery is used in aeroplanes?

 Dry cell battery.
 Lead acid battery.
 Edission cell.
 None of them.

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Electric Circuits
Mesh analysis is applicable for

 non planar networks.
 planar networks.
 neither planar and non planar networks..
 both planar and non planar networks.

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Electric Circuits
A 230V, 50Hz voltage is applied to a coil having L = 5H and R = 2 Ohm in series with capacitance C. When the voltage across the coil is 400V, find the current in the circuit?

 0.2547 A.
 0.4583 A.
 0.1578 A.
 0.1465 A.

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Electric Circuits
The breakdown voltage for paper capacitor is usually

 200 to 1600 volts.
 2000 to 3000 volts.
 20 to 60 volts.
 more than 10000 volts.

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MORE MCQ ON Electric Circuits

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