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Current Electricity

Current Electricity
The rating of a fuse wire is always expressed in

Ampere-hours
Amperes
kWh
Ampere-volts

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Current Electricity
Two lamps 100 W and 40 W are connected in series across 230 V (alternating). Which of the following statement is correct?

40 W lamp will glow brighter
40 W lamp will fuse
100 W lamp will glow brighter
Both lamps will glow equally bright

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Current Electricity
Nichrome wire is an alloy of

Copper and silver
Lead and zinc
Chromium and vanadium
Nickel and chromium

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Current Electricity
Which of the following statement is true both for a series and a parallel D.C. circuit?

Voltages are additive
Elements have individual currents
Power are additive
Currents are additive

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

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

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

Losses
True component of power
Input power
kWh consumed

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MORE MCQ ON Current Electricity

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