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Electric Circuits

Electric Circuits
Which of the following elements is/are called dynamic element/s?

 Both L and C.
 R.
 C.
 L.

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Electric Circuits
Reciprocity condition for h parameters is

 h12 = h21.
 h12 = - h21.
 h12 = h21.
 h11h22 - h21h12 = 0.

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Electric Circuits
If one cycle of AC waveform occurs every millisecond, the frequency will be

 1000 Hz.
 100 Hz.
 50 Hz.
 10 kHz.

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Electric Circuits
A 2m long conductor, carries a current of 50 A at a magnetic field of 100 × 10 − 3 T. The force on the conductor is

 10000 N.
 100 N.
 1000 N.
 10 N.

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Electric Circuits
A parallel plate capacitor with air as dielectric, force between plate is F. If capacitor is now immersed water of dielectric εr, force between plate will be –

 F.
 εr/F.
 F εr.
 0.

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Electric Circuits
The resistivity of the conductor depends on

 none of these.
 area of the conductor.
 length of the conductor.
 type of material.

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