Electric Circuits
Twelve 6 Ω resistor used as edge to form a cube. The resistance between two diagonally opposite corner of the cube is

 5 / 6 Ω.
 6 Ω.
 5 Ω.
 6 / 5 Ω.

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Electric Circuits
Two electric bulbs have transparent filament of same thickness. It one of them gives 60 W and other gives 100 W, then-

 60 W and 100 W lamp filament have equal length.
 60 W lamp filament has shorter length.
 100 W lamp filament has longer length.
 60 W lamp filament has longer length.

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Electric Circuits
What is referred as the average value in AC opearation?

  Average of all values of an alternating quantity over a complete cycle.
 Average of all values of the (+)ve and (-)ve half.
 Average of all values of the phase sequences.
 Average of all values of an alternating quantity.

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