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Current Electricity

Current Electricity
All good conductors have high

Reluctance
Conductance
Resistance
Thermal conductivity

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Current Electricity
International ohm is defined in terms of the resistance of

A cube of copper
A column of mercury
A cube of carbon
The unit length of wire

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Current Electricity
Voltage dependent resistors are used

As current stabilizers
For inductive circuits
As heating elements
To suppress surges

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Current Electricity
If a wire conductor of 0.2 ohm resistance is doubled in length, its resistance becomes

0.6 ohm
0.4 ohm
1.0 ohm
0.8 ohm

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Current Electricity
Sparking occurs when a load is switched off because the circuit has high

Capacitance
Resistance
Impedance
Inductance

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Current Electricity
Electric current is a

Vector quantity
Sometimes scalar and sometimes vector
Number only
Scalar quantity

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MORE MCQ ON Current Electricity

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