Which of the following statements are correct ?
(A) Electrostatic field lines form closed loops.
(B) In an electric dipole, the direction from charge to q is the direction of the dipole.
(C) Water molecule is an example of polar molecule.
(D) The electric field due to a uniformly charged thin shell is zero at some points inside the shell.
(E) Electrostatic force is conservative in nature.
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) →(C), (D) and (E) only
(A) Electrostatic field lines form closed loops. Incorrect — electrostatic field lines start from positive charges and end at negative charges, so they do not form closed loops.
(B) In an electric dipole, the direction from charge to q is the direction of the dipole. Incorrect — the dipole direction is from negative charge to positive charge, not the reverse.
(C) Water molecule is an example of polar molecule. Correct — water has unequal charge distribution due to its bent shape, making it polar.
(D) The electric field due to a uniformly charged thin shell is zero at some points inside the shell. Correct — in fact, the electric field is zero at all points inside the shell.
(E) Electrostatic force is conservative in nature. Correct — the work done by electrostatic force is independent of the path taken.