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Electric Circuits

Electric Circuits
The value of unity impulse function at time (t) = 0 is

 infinite.
 0.
 indeterminate.
 1.

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Electric Circuits
In RLC series circuit, if the voltage across capacitor is greater than voltage across inductor, then power factor of the network is

 zero.
 leading.
 lagging.
 unity.

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Electric Circuits
The equation for 25 cycles current sine wave having rms value of 30 amps, will be

 42.4sin25πt.
 42.4sin50πt.
 30sin25πt.
 30sin50πt.

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Electric Circuits
If the dielectric of a capacitor is replaced by conducting material

 the capacitor will get heated up due to eddy currents.
 the capacitance value of the plate will decrease.
 the capacitor can store infinite charge.
 the plate will get short circuited.

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

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

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Electric Circuits
The ratio of intensity of magnetisation to the magnetising force is known as

 relative permeability.
 susceptibility.
 none of above.
 flux density.

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MORE MCQ ON Electric Circuits

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