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Current Electricity

Current Electricity
Three resistance of 10 ohms, 15 ohms, and 30 ohm are connected in parallel. The total resistance of the combination is

5 ohms
55 ohms
15 ohms
10 ohms

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Current Electricity
A resistance having rating 10 ohms , 10 W is likely to be a

Wire wound resistor
Carbon resistor
Variable resistor
Metallic resistor

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

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

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Current Electricity
The resistance of a copper wire 200 m long is 21 ω. If its thickness (diameter) is 0.44 mm, its specific resistance is around

1.4 x 10-8 ω-m
1.8 x 10-8 ω-m
1.6 x 10-8 ω-m
1.2 x 10-8 ω-m

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Current Electricity
The filament of electrical bulb is made of

Tungsten
Nickel
Steel
Aluminium

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Current Electricity
All of the following are equivalent to watt except

Amperes/volt
Joules/sec.
(Amperes) ohm
Amperes × volts

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MORE MCQ ON Current Electricity

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