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Electric Circuits

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

  64 W.
 10 W.
 1 W.
 5 W.

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Electric Circuits
Which of the following quantities consists of SI unit as WATT ?

 Current
 Force
 Charge
 Power

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Electric Circuits
If a resistor and a capacitor are connected to form series R - C circuit across a voltage source. If frequency of voltage source increases

 the current remain unaltered.
 the current decreases.
 the current decreases abruptly.
 the current increases.

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

 Zero
 Minimum
None of these
 Maximum

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Electric Circuits
Four capacitors each of 40 µF are connected in parallel, the equivalent capacitance of the system will be

 160 µF
 40 µF
 10 µF
 5 µF

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Electric Circuits
When resistance element of a heater fuses and then we reconnect it after removing a portion of it, the power of heater will

  none of these.
  decrease.
  remain constant.
  increase.

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