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Current Electricity

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

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

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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

5 kWh
3.2 kWh
6 kWh
2 kWh

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Current Electricity
One commercial unit of energy equals

One watt-hour
One kilowatt-hour
One watt-hour
Ten kilowatt-hour

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Current Electricity
The maximum current rating for a 10 kΩ, 0.5 W resistor is

0.707 mA
7.07 mA
28.28 mA
14.14 mA

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Current Electricity
Varistors are

Insulators
Non-linear resistors
Carbon resistors
Resistor with zero temperature co-efficient

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Current Electricity
In case of liquids, ohm's law is

Partially obeyed
Fully obeyed
There is no relation between current and p. d
None of the listed here

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