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Electric Circuits

Electric Circuits
The rms value of sine wave is 100 A. Its peak value is

 150 A.
 141.4 A.
 282.8 A.
 70.7 A.

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Electric Circuits
Final value theorem is not applicable for which of the following?

 Both 2 and 3
 marginally stable systems
 stable systems
 unstable systems

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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

 N - 1.
 b - N + 1.
 N.
 b - N - 1.

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Electric Circuits
Container of a lead acid battery

 ceramics.
 celluloid.
 any of above.
 molded hard rubber.

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Electric Circuits
For closer tolerance which of the following capacitors is usually preferred?

 Mica capacitor.
 Ceramic disc capacitor.
 Paper capacitor.
 None of them.

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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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