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Current Electricity
The thickness of insulation provided on the conductor depends on
The magnitude of voltage on the conductor
Both magnitude of voltage and current
None of the listed here
The magnitude of current flowing through it
The magnitude of voltage on the conductor
Both magnitude of voltage and current
None of the listed here
The magnitude of current flowing through it
Answer
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Related Question
Current Electricity
Current velocity through a copper conductor is
the same as propagation velocity of electric energy
nearly 3 x 108 m/s
independent of current strength
of the order of a few ^.s/m
the same as propagation velocity of electric energy
nearly 3 x 108 m/s
independent of current strength
of the order of a few ^.s/m
Answer
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Current Electricity
When resistance element of a heater fuses and then we reconnect it after removing a portion of it, the power of the heater will
Remain constant
None of these
Increase
Decrease
Remain constant
None of these
Increase
Decrease
Answer
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Current Electricity
The electrical energy required to heat a bucket of water to a certain temperature is 4 kWh. If the heat losses are 20 percent, the energy input is
2 kWh
5 kWh
6 kWh
3.2 kWh
2 kWh
5 kWh
6 kWh
3.2 kWh
Answer
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Current Electricity
Two resistances Rl and Ri are connected in series across the voltage source where Rl > Ri. The largest drop will be across
Either Rl or Ri
Rl
None of them
Ri
Either Rl or Ri
Rl
None of them
Ri
Answer
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Current Electricity
The resistance of conductor varies inversely as
Length
Temperature
Area of cross-section
Resistivity
Length
Temperature
Area of cross-section
Resistivity
Answer
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