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Electric Circuits

Electric Circuits
Four capacitors each of 40 µF are connected in parallel, the equivalent capacitance of the system will be

 10 µF
 40 µF
 5 µF
 160 µF

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Electric Circuits
In series RLC circuit to get Q>1, which of the following is required?

 XL = R
 XL < R
 XL > R
All of these

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Electric Circuits
Which of the followings is/are active element?

 None of these.
 Both
 Current source
 Voltage source

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Electric Circuits
A two port network is defined by the relation The value of Z12 is

 3/41.
 3.
 -3.
 2/31.

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Electric Circuits
If 1 A current flows in a circuit, the number of electrons flowing through this circuit is

 1.6 × 1019
 0.625 × 10 - 19
 0.625 × 1019
 1.6 × 10 - 19

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Electric Circuits
The resistivity of semi-conductors at room temperatures is

 1000 to 1500 ohm - cm.
 0.01 to 50 ohm - cm.
 109 to 1012 ohm - cm.
 1.6 × 106 to 100 × 106 ohm - cm.

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