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Electric Circuits

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

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

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Electric Circuits
If one cycle of AC waveform occurs every millisecond, the frequency will be

 10 kHz.
 1000 Hz.
 100 Hz.
 50 Hz.

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Electric Circuits
Two battery having unequal emf

 cannot be connected in series.
 can be connected in series only.
 cannot be connected in parallel.
 both a and d

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Electric Circuits
A balanced three Phase Y-connected load has one phase voltage VB = 277∠45o V. The phase sequence is RYB. The line to line voltage VRY is

 339∠- 45o V.
 339∠45o V.
 480∠45o V.
 480∠ - 45o V.

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Electric Circuits
In series RLC circuit, voltage across resistor, inductor and capacitor are 5V, 2V and 2V respectively. Find total voltage?

 2V
 5V
 4V
 9V

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Electric Circuits
A series circuit consists of R = 20 Ω, L = 20 mH, and AC supply 60 V with f = 100 Hz. The current in R is

 1.27 A.
 2.54 A.
 10.16 A.
 5.08 A.

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