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Current Electricity

Current Electricity
The current in the circuit having constant resistance is tripled. The power increases

9 times
3 times
1/9 times
1/3 times

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Current Electricity
Varistors are

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

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Current Electricity
If the number of valence electrons of an atoms is less than 4,the substance is usually

An insulator
None of the listed here
A semiconductor
A conductor

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Current Electricity
If the efficiency of a machine is to be high, what should be low?

Input power
kWh consumed
True component of power
Losses

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Current Electricity
Electric pressure is also called

Resistance
Energy
Voltage
Power

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Current Electricity
Electric current is a

Sometimes scalar and sometimes vector
Vector quantity
Number only
Scalar quantity

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