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Electric Circuits

Electric Circuits
Which material has extremely large resistance?

 Conductor
 Insulator
None of these
 Semiconductor

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Electric Circuits
The absolute charge of an electron is

 none of above.
 + 1.6 × 10-19 C.
 1.6 × 10-19 C.
 - 1.6 × 10-19 C.

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Electric Circuits
What is a resistor?

 Hello
 Test
 Inductor
 Capacitor

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Electric Circuits
An electrical motor has rating of 10 MVA at 0.8 lag, represented as series RL circuit at a 50 MVA base. Find the impedance value?

 (4 + j2 ) pu
 (3 + j4) pu
 (2 + j4) pu
 (4 + j3) pu

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Electric Circuits
If N is the number of nodes and b is the number of branches in a network, then rank of cut set matrix is

 b - N - 1.
 N - 1.
 b - N + 1.
 N.

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Electric Circuits
In balanced bridge, if the positions of detector and source are interchanged, the bridge will still remain balanced. This can be explained from which theoem

 Thevinin's theorem
 Reciprocity theorem
 Compensation theorem
 Norton's theorem

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