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Electric Circuits

Electric Circuits
Which of following is the unit of magnetic flux density?

 Weber.
 Daraf.
 Tesla.
 Lumens.

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Electric Circuits
The efficiency in case of maximum power transfer theorem is

 50 %.
 less than 50 %.
 50 % - 100 %.
 100 %.

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Electric Circuits
In 2 port network Z12 = Z21 indicates which property

 bilateral.
 linear.
 non linear.
 unilateral.

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Electric Circuits
Given network is having N nodes and B branches, then number of twigs are

 N.
 B - N + 1.
 B - N - 1.
 N - 1.

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Electric Circuits
Which material has extremely large resistance?

 Insulator
None of these
 Conductor
 Semiconductor

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Electric Circuits
When 125 V is applied across a 250 V, 100 W filament incandescent bulbs, the power consumption is

 25 W.
 50 W.
 100 W.
 12.5 W.

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