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Electric Circuits

Electric Circuits
How many 200W / 220V bulbs connected in series across 220V supply will consume 100W?

 1.
 4.
 2.
 Not possible.

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Electric Circuits
The term trickle charge is associated with

 dry cell.
 nickel iron battery.
 lead acid battery.
 silver zinc battery.

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Electric Circuits
Among the options which metal has the highest electrical conductivity?

 Aluminium.
 Stranded aluminium.
 Steel.
 Copper.

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Electric Circuits
Resistor stores the energy in the form of

 magnetic field.
 electrical field.
 both A and B.
None of these

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Electric Circuits
The life of a lead acid battery is expected to be

 6 months.
 1 year.
 10 to 15 years.
 2 to 5 years.

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Electric Circuits
The active and reactive power in an AC circuit are 10W and 20VAR respectively. What is the power factor?

 0.5.
 0.577.
 1.
 0.866.

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