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Electric Circuits

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

 2.36.
 1.92.
 4.71.
 5.77.

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Electric Circuits
Unit step function is first derivative of

 ramp function.
 parabolic function.
 impulse function.
 gate function.

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Electric Circuits
In series R, L circuit power factor can be defined as

 Vr/V
All of these
 P/S
 R/Z

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Electric Circuits
When a lossy capacitor with a dielectric of permittivity ε and conductivity σ operates at a frequency ω the loss tangent for the capacitor is given by

 ω ε/σ.
  σ/ω ε.
 σ ω ε.
 ω σ/ε.

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Electric Circuits
The unit of electric displacement vector is

 C - m.
 Ampere-m.
 C/m.
 C/m2.

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Electric Circuits
Super position theorem is not applicable for

 power calculations.
 current calculations.
None of these
 voltage calculations.

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