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Electric Circuits

Electric Circuits
Which of the following lamp has least resistance ?

  25 W, 220 V.
  60 W, 220 V.
 100 W, 220 V.
  200 W, 220 V.

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Electric Circuits
If the dielectric of a capacitor is replaced by conducting material

 the plate will get short circuited.
 the capacitor can store infinite charge.
 the capacitor will get heated up due to eddy currents.
 the capacitance value of the plate will decrease.

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Electric Circuits
Poles and zeros are arranged alternatively on imaginary axis, then type of network is?

 Any of the above
 RL network
 LC network
 RC network

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Electric Circuits
While comparing magnetic field and electric circuits, the point of dissimilarity exists while considering

 reluctance and resistance.
 flux and current flow.
 mmf and emf.
 permeance and conductance.

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Electric Circuits
In series RLC circuit which of the following represents the Q factor ?

All of these
 VR/V
 XC/R
 XL/R

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Electric Circuits
Which of the following may be the value of resistivity of copper at absolute zero in ohm-metre?

 1.56.
 3.12.
 0.020.
 6.24.

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