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Current Electricity

Current Electricity
If an electric current is passed through a nerve, the man

Is excited
Begins to laugh
Becomes insensitive to pain
Begins to weep

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Current Electricity
The SI unit of power is

Coulomb
Watt-hour
Watt
Henry

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Current Electricity
In a lamp load when more than one lamp are switched on the total resistance of the load

Increases
None of these
Remains same
Decreases

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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
Increase
Decrease
None of these

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Current Electricity
A light bulb draws 300 mA when the voltage across it is 240 V. The resistance of the light bulb is

800 Ω
600 Ω
400 Ω
1000 Ω

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Current Electricity
Two lamps 100 W and 40 W are connected in series across 230 V. Which of the following statement is correct?

40 W lamp will fuse
Both lamps will glow equally bright
40 W lamp will glow brighter
100 W lamp will glow brighter

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