The values of mA and $$\mu A$$ are:

$$10^{-3}A$$ and $$10^{-6}A$$ respectively

$$10^{-6}A$$ and $$10^{-9}A$$ respectively

$$10^{-3}A$$ and $$10^{-9}A$$ respectively

$$10^{-6}A$$ and $$10^{-3}A$$ respectively

The resistivity does not change if

the shape of the resistor is changed

both material and temperature are changed

Two resistors of resistance 2 $$\Omega$$ and 4 $$\Omega$$ when connected to a battery will have

same current flowing through them when connected in series

same current flowing through them when connected in parallel

same potential difference across them when connected in series

different potential difference across them when connected in parallel

Assertion (A): In a simple battery circuit the point of highest potential is positive terminal of the battery. Reason (R): The current flows towards the point of the lower potential as it flows in such a circuit from the positive to the negative terminal.

Both (A) and (R) are true and (R) is the correct explanation of the assertion (A).

Both (A) and (R) are true but (R) is not the correct explanation of the assertion (A).

Assertion (A): Electric applicances with metallic body have three connections, whereas an electric bulb has a two pin connection. Reason (R): Three pin connections reduce heating of connection wires.

Both (A) and (R) are true and (R) is the correct explanation of the assertion (A).

Both (A) and (R) are true but (R) is not the correct explanation of the assertion (A).

Assertion (A): The metals and alloys are good conductors of electricity. Reason (R): Bronze is an alloy of copper and tin and it is not a good conductor of electricity.

Both (A) and (R) are true and (R) is the correct explanation of the assertion (A).

Both (A) and (R) are true but (R) is not the correct explanation of the assertion (A).

Assertion (A): Alloys are commonly used in electrical heating devices like electric iron and heater. Reason (R): Resistivity of an alloy is generally higher than that of its constituent metals but the alloys have low melting points than their constituent metals.

Both (A) and (R) are true and (R) is the correct explanation of the assertion (A).

Both (A) and (R) are true but (R) is not the correct explanation of the assertion (A).

Electricity (one Q number higher for each Q number)

Authored by RickyDecode RickyDecode

Physics

10th Grade

Electricity (one Q number higher for each Q number)

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The SI unit of charge is

ampere

coulomb

farad

volt.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The SI unit of electric current is

ohm

volt

ampere

coulomb.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A current of 1 A is drawn by a filament of an electric bulb. Number of electrons passing through a cross section of the filament in 16 seconds would be roughly

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Volt is the SI unit of

potential difference

current

resistance

charge.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

No current flows between two charged bodies when connected, if they have same

capacity

potential

charge

none of these.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following represents voltage?

Work done × Charge

Work done × Charge × Time

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Electricity (one Q number higher for each Q number)

The SI unit of charge is

The SI unit of electric current is

A current of 1 A is drawn by a filament of an electric bulb. Number of electrons passing through a cross section of the filament in 16 seconds would be roughly

Volt is the SI unit of

No current flows between two charged bodies when connected, if they have same

Which of the following represents voltage?

The surface of the earth is taken to be at

Electrical resistivity of a given metallic wire depends upon

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Popular Resources on Wayground

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