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Electric Circuits

Electric Circuits
In a series resonant circuit impedance is

 minimum.
 maximum.
 none of these.
 zero.

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Electric Circuits
For finding the Z11 parameter at the input port of a two port network

 output port is open circuited.
 output port is short circuited.
 input port is short circuited.
 input port is open circuited.

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Electric Circuits
Two point charges of 4μC are placed at a distance of 3 cm apart from each other in free space. Force acting on two charges will be

 400 N
 0.02 N
 160 N
 100 N

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Electric Circuits
Kirchhoff's second law is based on law of conservation of

 charge.
 mass.
 momentum.
 energy.

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Electric Circuits
Active materials of a lead acid cell are

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

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Electric Circuits
Four resistances 80 Ohm, 50 Ohm, 25 Ohm and R are connected in parallel. Current through 25 Ohm resistance is 4A. Total current of supply is 10A. The value of R will be

 36.36.
 76.66.
 66.66.
 40.25.

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MORE MCQ ON Electric Circuits

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