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Electric Circuits

Electric Circuits
Millman theorem yields equivalent

 current source.
 both ‘c’ and ‘d’ .
 impedance.
 voltage source.

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Electric Circuits
The voltage across R and L in a series RL circuit are found to be 200 V and 150 V respectively the rms value of the voltage across the series combination is ______ V.

 250
 200
 450
 360

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Electric Circuits
The time required for a pulse to change from 10 % to 90 % of its maximum value is known as

 rise time.
 decay time.
 fall time.
 run time.

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Electric Circuits
A 35 V source is connected to a series circuit of 600 Ω and R as shown. If a voltmeter of internal resistance 1.2 kΩ is connected across 600 Ω resistor, it reads 5 V. The value of R is

 1.2 k Ω.
 3.6 k Ω.
 2.4 k Ω.
 7.2 k Ω.

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Electric Circuits
Which property is used to oppose the flow of current ?

 Poteintial difference
 Capacitance
 Resistance
 Inductance

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Electric Circuits
Two 1 kΩ, 1 W resistors are connected in series. Their combine resistance and wattage will be

 0.5 kΩ, 2 W.
 1 kΩ, 1 W.
 2 kΩ, 1 W.
 2 kΩ, 0.5 W.

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