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Electric Circuits

Electric Circuits
The rms value of the voltage U(t)= 3 + 4cos(3t)

 7 V.
  4.123 V.
  5 V.
 {3 + 2(1.141)} V.

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Electric Circuits
The terminals across the source are ___________ if a voltage source is to be neglected.

 open circuited.
 replaced by a shunt resistance.
 short circuited.
 replaced by a series resistance.

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Electric Circuits
Among the options which metal has the highest electrical conductivity?

 Aluminium.
 Steel.
 Copper.
 Stranded aluminium.

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Electric Circuits
A voltage of v = 100 sin (wt + π/3) is applied to pure resistor of 30 Ohm. What is the RMS value of current is

 4.71.
 1.92.
 2.36.
 5.77.

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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 tie set matrix is

 b - N - 1.
 N - 1.
 N.
 b - N + 1.

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Electric Circuits
In the figure given, the value of R is

 10 Ω.
 24 Ω.
 18 Ω.
 12 Ω.

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MORE MCQ ON Electric Circuits

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