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Current Electricity

Current Electricity
Which of the following is the best material for making connecting wires?

Nichrome
Manganin
Constant
Copper

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Current Electricity
Two bulbs of 500 W and 200 W rated at 250 V will have resistance ratio as

25 : 4
4 : 25
5 : 2
2 : 5

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Current Electricity
Nichrome wire is an alloy of

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

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Current Electricity
Conductance is reciprocal of

Resistance
Capacitance
Inductance
Reluctance

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Current Electricity
Current velocity through a copper conductor is

nearly 3 x 108 m/s
the same as propagation velocity of electric energy
of the order of a few ^.s/m
independent of current strength

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Current Electricity
The resistance of a straight conductor is independent of

Temperature
Cross-sectional area
Material
Shape of cross-section

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MORE MCQ ON Current Electricity

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