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Electric Circuits

Electric Circuits
Which resistor will be physically larger in size?

 1 M Ω, 1/2 W.
 100 Ω, 10 W.
 10 Ω, 50 W.
 1 k Ω, 1 W.

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Electric Circuits
Three parallel resistive branches are connected across a DC supply. The ratio of the branch resistances are given as R1:R2:R3 :: 2:4:6. The ratio of the branch currents is

 2:4:6.
 6:3:2.
 2:3:6.
 6:4:2.

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Electric Circuits
A star connected load has three equal impedance each of (40 + j30) Ω If the line current is 5 A then value of line voltage is

 250 / √3 V.
 250 √3 V.
 200 V.
 250 V.

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Electric Circuits
In 2 port network Z12 = Z21 indicates which property

 bilateral.
 unilateral.
 non linear.
 linear.

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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

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

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Electric Circuits
If a capacitors of capacitance 100 μF is connected across a voltage source of 10 V, then what will be the energy stored in that capacitor?

 5 × 10 - 3 Joule.
 5 × 10 - 2 Joule.
 10 × 10 6 Joule.
 10 × 10 - 3 Joule.

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