Question

The given figure gives electric lines of force due to two charges $ {{q}_{1}} $ and $ {{q}_{2}} $ . What are the signs of the two charges?

• A. Both are negative
• B. Both are positive
• C. $ {{q}_{1}} $ is positive but $ {{q}_{2}} $ is negative
• D. $ {{q}_{1}} $ is negative but $ {{q}_{2}} $ is positive

Answer 1

Answer: (A)

The electric lines of force are directed from higher potential to lower potential. The lines are directed towards $ {{q}_{1}} $ and $ {{q}_{2}} $ from neighbouring points, so $ {{q}_{1}} $ and $ {{q}_{2}} $ both are negative (at lower potential).