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Electric Circuits

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

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

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Electric Circuits
Which of the following has no units?

 Permeability
 Moment of a magnet
 Magnetic susceptibility
 Permittivity

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

 4 W.
 12 W.
 2 W.
 8 W.

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Electric Circuits
If emf in a given circuit is given by e = 100 sinω0t, then maximum value of voltage and frequency will be

 100√2 V, 100 Hz.
 100 V, 100 Hz.
 50√2 V, 100 Hz.
 100 V, 50 Hz.

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Electric Circuits
The ratio of electric flux density to electric field intensity is called ......... of medium

 permittivity
 permeability
 capacitance
 reluctance

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Electric Circuits
Given network is having N nodes and B branches, then number of twigs are

 B - N - 1.
 N.
 N - 1.
 B - N + 1.

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