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Current Electricity

Current Electricity
Temperature coefficient of resistance is expressed in terms of

ohms/°C
mhos/ohm°C
mhos/°C
ohms/ohm°C

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Current Electricity
Current velocity through a copper conductor is

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

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Current Electricity
Eureka has _______ temperature co-efficient of resistance.

Positive
Almost zero
Negative
None of the listed here

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

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

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Current Electricity
The resistance of human body is about

1000 ohm
25 ohm
200 ohm
10 ohm

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Current Electricity
The minimum charge on an ion is

Equal to the atomic number of the atom
Equal to the charge of an electron
Equal to the charge of the number of electrons in an atom (#) zero
None of these

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