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Electric Circuits

Electric Circuits
Active materials of a lead acid cell are

 all of above.
 lead peroxide.
 dilute H2SO4.
 spongy lead.

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Electric Circuits
A voltage of v = 100 sin (wt + π/3) is applied to pure resistor of 30 Ohm. What is the RMS value of current is

 4.71.
 1.92.
 5.77.
 2.36.

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Electric Circuits
Consider the following circuit. What is the value of current I in the 5 Ω resistor in the circuit given in the figure?

 4 A.
 3 A.
 0 A.
 2 A.

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Electric Circuits
A 3Ω resistor having 2A current will dissipate the power of

 4 W.
 2 W.
 12 W.
 8 W.

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Electric Circuits
A series circuit consists of R = 20 Ω, L = 20 mH, and AC supply 60 V with f = 100 Hz. The phase angle of current in respect of supply voltage will be

 20.2o.
 40.4o.
 28.8o.
 32.1o.

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Electric Circuits
If L and C both are doubled than damping in above circuit will be

None of these
 halved as compared to previous one.
 remains same.
 doubled as compared to previous one.

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MORE MCQ ON Electric Circuits

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