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Electric Circuits

Electric Circuits
Which resistor will be physically larger in size?

 1 M Ω, 1/2 W.
 1 k Ω, 1 W.
 100 Ω, 10 W.
 10 Ω, 50 W.

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

 2.
 1.
 Not possible.
 4.

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Electric Circuits
In RC series circuit R = 2Ω, C = 2μF and 10V dc is applied. Then what is the value of current?

 10A
 0A
 5A
 2A

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Electric Circuits
A periodic voltage having the Fourier series V(t)= {1 + 4sinω0t}

 21 W.
 24.5 W.
 11 W.
 1 W.

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Electric Circuits
When AC flows through a pure capacitance then the current

 lags the emf by 90o.
 is in phase with emf.
 leads the emf by - 90o.
 leads the emf by 90o.

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Electric Circuits
Two resistor are said to be connected in parallel when

 both ‘b’ and ‘c’
 both carry the same value of current.
 total current equals the sum of branch currents.
 both have the same potential difference.

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