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Electric Circuits

Electric Circuits
For Norton’s equivalent circuit

 Voc = Req /Isc.
 Voc = Isc / Req.
 Isc = Voc / Req.
 Isc = Voc Req.

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Electric Circuits
If a large resistance is connected in parallel to a small resistance then net resistance will be

 smaller than the greater but larger than the smaller resistance.
 greater than the large resistance.
 smaller than the small resistance.
None of these

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Electric Circuits
The synchronous speed for the seventh space harmonic mmf wave of 8 pole, 50 Hz induction machine will be

 107.14 rpm in reverse direction.
 5250 rpm in reverse direction.
 5250 rpm in forward direction.
 107.14 rpm in forward direction.

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Electric Circuits
From the given figure find the R3

 25 ohm
 25 mili ohm
 25 kilo ohm
 25 mega ohm

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Electric Circuits
Current source has internal impedance connected in parallel with it whereas voltage source has internal impedance connected in __________________ with it.

 series
 parallel
  both of above
  none of them

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Electric Circuits
The energy required to charge a 10 μF capacitor to 100 V is

 0.01 J.
 5 × 10-9 J.
 0.05 J.
 10 × 10-9 J.

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