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Current Electricity

Current Electricity
Ohm's law is not applicable to

Dc circuits
High currents
Small resistors
Semi-conductors

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Current Electricity
Out of the following which is not a poor conductor?

Carbon
Copper
Tungsten
Cast iron

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Current Electricity
A closed switch has a resistance of

About 50 ohms
Zero
Infinity
About 500 ohms

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Current Electricity
Voltage dependent resistors are usually made from

Nichrome
Graphite
Silicon carbide
Charcoal

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Current Electricity
Whether circuit may be AC. or D.C. one, following is most effective in reducing the magnitude of the current.

Reactor
Inductor
Resistor
Capacitor

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Current Electricity
Ampere-hour is the unit of

Strength of current
Quantity of electricity
Energy
Power

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MORE MCQ ON Current Electricity

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