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Electric Circuits

Electric Circuits
In the circuit shown below, find the thevnin equivalent resistance.

 1.5 Ohm.
 5 Ohm.
 5/6 Ohm.
 6/5 Ohm.

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Electric Circuits
An electrical circuit with 10 branches and 7 nodes will have

 3 loop equations.
  10 loop equations.
  4 loop equations.
 7 loop equations.

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Electric Circuits
The phase angle difference between current and voltage is 90o, the power will be

 maximum.
 VI.
 minimum.
 zero.

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Electric Circuits
A circuit with resistor, inductor, capacitor in series is resonant of 50 Hz. If all the values are now doubled, the new resonant frequency is

 f0 / 4.
 2f0.
 f0 / 2.
 still f0.

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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

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

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Electric Circuits
R1 = 36 Ω and R2 = 75 Ω, each having tolerance of ±5% are connected in series. The value of resultant resistance is

  111 ± 5.55 Ω.
 111 ± 2.77 Ω.
 111 ± 7.23 Ω.
  111 ± 0 Ω.

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MORE MCQ ON Electric Circuits

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