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Electric Circuits

Electric Circuits
A rectangular magnet of magnetic moment M is cut into two pieces of same length. The magnetic moment of each piece will be

 M / L.
 2 M.
 M / 2.
 M.

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Electric Circuits
For the circuit shown below the value of R is adjusted so as to make the current in RL equal to zero. Calculate the value of R.

 3 Ω.
 2 Ω.
 4 Ω.
 1 Ω.

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Electric Circuits
A 60 Hz frequency voltage would cause a bulb to turn on and off

 80 times per second.
 70 times per second.
 60 times per second.
 120 times per second.

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

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

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Electric Circuits
Capacitor does not allow the sudden change of

 voltage
 power
 current
None of these

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Electric Circuits
Sulphation in a lead acid battery occurs due to

 trickle charging.
 fast charging.
 incomplete charging.
 heavy charging.

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