Electric Charge Concepts Quiz

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Which property of electric charge is not satisfied?

Quantization of charge

Circular line of force (correct)

Two types of charge

Total charge conservation

Which of the following electric charges is possible?

$5.8 \times 10^{-18}$ C

$8.6 \times 10^{-19}$ C

$3.2 \times 10^{-18}$ C

$4.5 \times 10^{-19}$ C (correct)

If a charge on a body is $1$ nC, how many electrons are present on the body?

$6.25 \times 10^{28}$

$6.25 \times 10^{27}$

$1.6 \times 10^{19}$ (correct)

$6.25 \times 10^{9}$

What is the fundamental unit of electric charge according to the text?

The charge of an electron Signup and view all the answers

According to Gauss's law, the electric flux through any closed surface is proportional to what?

The total electric charge enclosed by the surface Signup and view all the answers

Which of the following quantities cannot be found using Gauss's law?

Electric potential Signup and view all the answers

When a soap bubble is given a negative charge, what happens to its radius?

Remains unchanged Signup and view all the answers

If two identical metal spheres A and B repel each other with a force F, and an uncharged sphere C is touched to A and then placed midway between A and B, what is the net force on C?

F towards B Signup and view all the answers

For an electric dipole placed in a uniform electric field, at what angle between the dipole moment and the electric field is the potential energy minimum?

0 radians Signup and view all the answers

An electric dipole consists of two opposite charges of magnitude 1 μC separated by a distance of 2 cm. If this dipole is placed in an electric field of 10^-5 V/m, what is the maximum torque experienced by the dipole?

4 x 10^-3 Nm Signup and view all the answers

What information do electric field lines provide?

All of the above Signup and view all the answers

If two charges, +1 μC and +2 μC, are kept at a certain separation, what will be the ratio of the electrostatic forces acting on them?

1:4 Signup and view all the answers

What is the net electric flux through a closed surface that does not enclose any charge?

The flux is zero, according to Gauss's law. Signup and view all the answers

If a surface encloses an electric dipole, what is the net electric flux through the surface?

The flux is zero, as the fields due to the positive and negative charges cancel out. Signup and view all the answers

What is the electric flux through a surface when it is rotated in a uniform electric field?

The flux is maximum when the surface is perpendicular to the field. Signup and view all the answers

If a point charge $q$ is placed at a distance $a/2$ directly above the center of a square of side $a$, what is the electric flux through the square?

$q/6\epsilon_0$ Signup and view all the answers

Which of the following statements about electric field lines and electric flux is correct?

The number of electric field lines entering a closed surface is always equal to the number leaving the surface. Signup and view all the answers

What is the electric flux through an infinite plane sheet of charge?

The flux is proportional to the total charge on the plane. Signup and view all the answers

Electric Charge Concepts Quiz

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