Question Detail
Question
A small object carrying a charge of 5 x 10⁻⁹ C experiences a downward force of 20 x 10⁻⁹ N when placed at a certain point in an electric field. What is the electric field at the point?
Correct Answer
Option C is the correct answer.
Detailed Explanation
The electric field (E) is defined as the force (F) experienced per unit charge (Q). The formula is E = F/Q. Given F = 20 x 10⁻⁹ N and Q = 5 x 10⁻⁹ C, we calculate E = (20 x 10⁻⁹ N) / (5 x 10⁻⁹ C) = 4.00 N/C.
Hint
Remember the definition of electric field intensity: Force per unit charge.