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Electric Circuits

Electric Circuits
If P is the power of a star connected system then what will be power of an equivalent delta connected system?

None of these
 P/3
 3P
 P

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Electric Circuits
The thevnin equivalent of the circuit shown in the figure is

 0.75 V, 1.5 Ohm
 1.5V, 1.5 Ohm
 0.75V, 5/6 Ohm
 1.5V, 5/6 Ohm

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Electric Circuits
The average value of half wave rectified sinusoidal current waveform, whose maximum value is 1A is

 0.637 A.
 1 A.
 0.5 A.
 0.318 A.

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Electric Circuits
A ceramic and a mica capacitor have the same physical dimension. Which has the higher value of capacitance?

 Mica capacitor.
 Both have identical value of capacitor.
  It is impossible to conclude on the basis of information supplied.
 Ceramic capacitor.

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Electric Circuits
To obtain a high value of capacitance, the permittivity of dielectric medium should be

 high
 low
 zero
 unity

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Electric Circuits
In RC series circuit R = 2Ω, C = 2μF and 10V dc is applied. Then what is the value of current?

 10A
 5A
 0A
 2A

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