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The resistance of a conductor does NOT depend on

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Important Questions on Current Electricity

MEDIUM
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IMPORTANT
A small town is located 10 km away from a power plant. An average of 120 kW of electric power is sent to this town. The transmission lines have a total resistance of 0.40Ω. Calculate the power loss, if the power is transmitted at 240 V.
EASY
JKCET
IMPORTANT
Find the percentage increase in resistance of a wire when it is stretched uniformly so that its length increases by 0.5%.
MEDIUM
JKCET
IMPORTANT
The difference between the maximum and minimum values of resistance of a resistor with the color scheme green-green-red-silver is
EASY
JKCET
IMPORTANT
The device or substances which DO NOT obey ohm's law is/are
MEDIUM
JKCET
IMPORTANT
What will be the resistance of a wire at 0 degree celsius, if its resistance is 5ohm at 50 degree celsius and 6ohm at 100 degree celsius?
MEDIUM
JKCET
IMPORTANT
The resistance of the platinum wire of a platinum resistance thermometer at the ice point is 5 Ω and at steam point is 5.23 Ω. When the thermometer is inserted in a hot bath, the resistance of the platinum wire will be 5.795 Ω. Calculate the temperature of the bath.
MEDIUM
JKCET
IMPORTANT
A cell of negligible internal resistance and emf 2.5 V is connected to a series combination of 1 Ω1 Ω and 3 Ω. The potential difference across 3 Ω resistance is
HARD
JKCET
IMPORTANT
Twelve wires, each of resistance 2Ω are connected to form a cube. Find the equivalent resistance between the adjacent corners of any face of the cube