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Electric Circuits

Electric Circuits
The thevnin equivalent of the circuit shown in the figure is

 1.5V, 5/6 Ohm
 0.75 V, 1.5 Ohm
 0.75V, 5/6 Ohm
 1.5V, 1.5 Ohm

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Electric Circuits
The unit of resistivity is

 Ω.
 Ω - metre.
 Ω / metre.
 Ω / m².

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Electric Circuits
Which of the following are the passive elements?

 Both
 Resistor
 None of these.
 Bulb

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Electric Circuits
Air gap flux density is of the order of

  0.35 - 0.5 T.
 0.85 - 0.9 T.
 0.75 - 0.8 T.
  0.65 - 0.9 T.

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Electric Circuits
In foster 1 form 1st element is

 none.
 inductor.
 capacitor.
 both.

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Electric Circuits
The hot resistance of a tungsten lamp is about 10 times the cold resistance. Accordingly, cold resistance of a 100 W, 200 V lamp will be

 4 Ω.
 800 Ω.
  40 Ω.
 400 Ω.

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