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Electric Circuits

Electric Circuits
From the circuit diagram shown in question 1 find the maximum power transferred to the load.

 1.875 W.
 15.247 W.
 4.547 W.
 9 W.

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Electric Circuits
Millman theorem yields equivalent

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

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Electric Circuits
Types of rotating machines

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

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Electric Circuits
When AC flows through a pure capacitance then the current

 is in phase with emf.
 leads the emf by 90o.
 lags the emf by 90o.
 leads the emf by - 90o.

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Electric Circuits
The terminals across the source are ___________ if a voltage source is to be neglected.

 replaced by a series resistance.
 short circuited.
 replaced by a shunt resistance.
 open circuited.

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Electric Circuits
A wire 2.5 m long is bent into a square. An current of 100 A flowing through the wire will produce a magnetizing force at the center of the square, equal to

 196 AT / m.
 144 AT / m.
 72 AT / m.
 222 AT / m.

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