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Electric Circuits

Electric Circuits
Which of the following is the different one in terms of measurements?

 Q
 L/R
 RC
 2L/R

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Electric Circuits
The resistivity of the conductor depends on

 none of these.
 area of the conductor.
 type of material.
 length of the conductor.

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Electric Circuits
A 230V, 50Hz voltage is applied to a coil having L = 5H and R = 2 Ohm in series with capacitance C. When the voltage across the coil is 400V, find the value of C?

 10.54 µF.
 4.78 µF.
 8.51 µF.
 1.8 µF.

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Electric Circuits
In balanced bridge, if the positions of detector and source are interchanged, the bridge will still remain balanced. This can be explained from which theoem

 Compensation theorem
 Reciprocity theorem
 Norton's theorem
 Thevinin's theorem

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Electric Circuits
An ideal constant voltage source has _______________ internal impedance whereas a constant current source has ____________ internal impedance.

 zero, infinite
 zero, zero
 infinite, zero
 infinite, infinite

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Electric Circuits
A 100 ohm resistor is directly connected across a 80 V battery. What is the power dissipation?

 5 W.
 1 W.
  64 W.
 10 W.

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