73 questions in Chapter 12 Electricity - HI MCQ!

Electrical resistivity of any given metallic wire depends upon?

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Coulomb is the SI unit of?

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1 mV is equal to?

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Which is/ are incorrect?

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The electric current is a flow of electric charges, called electrons, in a conductor such as a metal wire.
Current is measured by an instrument called voltmeter.
It is the potential difference between the ends of the wire which makes the electric charge to flow in the wire.
When one coulomb of charge flows through any cross-section of a conductor in 1 second, the electric current flowing through it is said to be one ampere.

At the time of short circuit, the electric current in the circuit?

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Heat produced in a current carrying wire in 5s is 60J. The same current is passed through another wire of half the resistance. The heat produced in 5s will be?

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The work done in moving a unit positive charge across two points in an electric circuit is a measure of?

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Electrical resistivity of a given metallic wire depends upon?

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Which of the following gases are filled in electric bulbs?

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Which of the following statement is or are correct?

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The simplest way to maintain a potential difference between the two ends of a conductor is to connect the conductor between the terminals of a cell or battery.
The electric current is a flow of electrons in a metal wire or conductor when a battery is applied across its ends.
Circuit is a continuous conducting path consisting of wires and switch between two terminals of a cell along which an electric current flow.
All the above