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Electric Circuits

Electric Circuits
To reduce hysteresis loss, we use

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

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Electric Circuits
Which cell has the reversible chemical reaction?

 Carbon Zinc.
 Lead acid.
 Silver oxide.
 Mercury oxide.

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Electric Circuits
From the circuit diagram shown in question 1 find the maximum power transferred to the load.

 1.875 W.
 9 W.
 15.247 W.
 4.547 W.

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Electric Circuits
A wire of 0.14 mm diameter and specific resistance 9.6 Ω - cm is 440 cm long. The resistance of the wire will be

 27.4 Ω.
 13.7 Ω.
 11.3 Ω.
 9.6 Ω.

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Electric Circuits
The value of unity impulse function at time (t) = 0 is

 infinite.
 1.
 indeterminate.
 0.

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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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