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Electric Circuits

Electric Circuits
To reduce hysteresis loss, we use

 laminated sheets.
 copper bars.
 soft-iron.
 CRGO steel.

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Electric Circuits
A voltage of v = 100 sin (wt + π/3) is applied to pure resistor of 30 Ohm. What is the RMS value of current is

 5.77.
 1.92.
 2.36.
 4.71.

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Electric Circuits
Advantage of active filter is

  easy to tune.
  do not offer gain.
  both of above.
  derive high impedance load.

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Electric Circuits
The equation for 25 cycles current sine wave having rms value of 30 amps, will be

 42.4sin25πt.
 30sin25πt.
 30sin50πt.
 42.4sin50πt.

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Electric Circuits
Can a 250 V, 5 A single way switch be used in place of a 250 V, 15 A Switch?

  Single way switch doesn exist.
  Single way switch doesn operate at such current ratings.
  Yes.
  No.

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Electric Circuits
Mica capacitor are characterised by all of following except

 low leakage reactance.
 low losses.
 accurate value.
 stable operation.

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MORE MCQ ON Electric Circuits

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