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JEE PHYSICS MCQ: ELECTRIC FIELDS AND CHARGES

1 Medium

1 of 1

Application +4 | -1

Estimate the number of electrons in

100 \mathrm{~g}

of water. How much is the total negative charge on these electrons?

View answer and explanation

Correct option: B

5.34 \times 10^6 \mathrm{c}

Option B (

5.34 \times 10^6 \mathrm{c}

) is correct because it calculates the total negative charge by finding the number of electrons and multiplying by the charge of an electron.

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Assertion:- Electric field lines do not cut at any point.
Reason:- At any point, there is only one direction of electric field. Statement-I: A positive point charge is brought in an electric field, the electric field at neary by point will increase

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are separated by a distance

r.

The force(s) they
experience is (are) Statement-I: No 2 electric lines of force can intersect each other

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4N

is acting between two charges in air if the space between them is completely filled with glass

\left( {{\varepsilon _r} = 8} \right)

, then the new force will be ……

N

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5 \times {10^{ - 2}}

coulomb. The force of on the electron is ________ N