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Electric Circuits

Electric Circuits
For occurrence of resonance which of the following elements are required?

 R
 C
 L
 Both 2 and 3

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Electric Circuits
What is a resistor?

 Hello
 Test
 Inductor
 Capacitor

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

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

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Electric Circuits
Which material has extremely large resistance?

 Conductor
 Insulator
None of these
 Semiconductor

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Electric Circuits
A capacitor is charged by a constant 10 mA current sources which is turned on for 1 second. Assuming the capacitor is initially charge free; determine the charge delivered to and the power supplied by the source if the capacitor has a value of 1 mF.

 0.1C, 10MW.
 0.01C and 5W.
 0.01C, 10MW.
 0.1C, 100MW.

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Electric Circuits
Which battery is used in aeroplanes?

 None of them.
 Lead acid battery.
 Dry cell battery.
 Edission cell.

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