Electric Circuits
A p.d. of 300 V is applied across series combination of 3 μF and 9 μF capacitors. The charge on each capacitor is ___________________ μC.

 240.
 3600.
 7.5.
 675.

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Electric Circuits
Atoms have no electric charge because they

 have an equal number of electrons and protons.
 have neutrons in their nuclei.
 have an equal number of neutrons and protons.
 have an equal number of charged and non charged particles.

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Electric Circuits
What is time period T?

 Time taken by an alternating quantity to reach the peak value.
 Time taken by an alternating quantity to complete the (-)ve half.
 Time taken by an alternating quantity to complete the (+)ve half.
 Time taken by an alternating quantity to complete one full cycle.

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