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Electric Circuits

Electric Circuits
What is Va in the below circuit?

 (4R + 10) / 3.
 (3R + 10) / 3.
 (6R - 10) / 3.
 (6R + 10) / 3.

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

 Current.
 All of above.
 Voltage.
 Power factor.

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Electric Circuits
A 100 ohm resistor is directly connected across a 80 V battery. What is the power dissipation?

 1 W.
 5 W.
 10 W.
  64 W.

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Electric Circuits
In ideal system coefficient of coupling(k) is

 Both 2 and 3
 1
 ∞
 0

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Electric Circuits
Time constant of RL series circuit is

 L/R
 2RC
 2L/R
 RC

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Electric Circuits
In RLC series circuit, at resonance condition the value of current is

 Minimum
 Zero
 Maximum
None of these

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