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Electric Circuits

Electric Circuits
The number of electrons in the outer most orbits of carbon atom is

 3.
 4.
 6.
 7.

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Electric Circuits
In direct arc furnace which of following is of high value?

 All of above.
 Voltage.
 Power factor.
 Current.

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Electric Circuits
From the circuit diagram shown in question 1 find the thevnin voltage.

 3 V.
 15 V.
 5 V.
 1.5 V.

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Electric Circuits
Two point charges of 4μC are placed at a distance of 3 cm apart from each other in free space. Force acting on two charges will be

 100 N
 400 N
 160 N
 0.02 N

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Electric Circuits
Three element having conductance G1, G2 and G3 are connected in parallel. Their combined conductance will be

 (1 / G1 + 1 / G2 + 1 / G3) - 1.
 G1 + G2 + G3.
 1 / G1 + 1 / G2 + 1 / G3.
 (G1 + G2 + G3) - 1.

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Electric Circuits
Mica capacitor are characterised by all of following except

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

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