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Current Electricity

Current Electricity
A field of force can exist only between

Two molecules
Two metal particles
Two atoms
Two ions

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Current Electricity
All good conductors have high

Resistance
Reluctance
Thermal conductivity
Conductance

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Current Electricity
Which of the following materials has the least resistivity ?

Lead
Copper
Mercury
Zinc

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Current Electricity
The resistance of a conductor varies inversely as

Length
Temperature
Are of cross-section
Resistivity

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Current Electricity
What voltage drop will be there across a 1 kW electric heater whose resistance when hot is 40 Ω?

200 V
50 V
100 V
150 V

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Current Electricity
A 3 Q resistor having 2 A current will dissipate the power of

6 watts
8 watts
2 watts
4 watts

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MORE MCQ ON Current Electricity

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