Question

You have a positive point charge drawn at the center of a piece of paper. Along the edge of the paper, you draw a border. Where would you place the 50V red lead and the 0V black lead from the voltage supply?

a. 50V red lead on the positive point charge, 0V black lead on the paper border.
b. 50V red lead on the paper border, 0V black lead on the positive point charge.
c. Placement does not matter for a point charge.
d. 50V red lead and 0V black lead can be placed anywhere on the paper.

Answer 1

The correct answer is option a. 50V red lead on the positive point charge, 0V black lead on the paper border.

Step-by-step explanation:

The black lead of a voltage supply represents the ground or reference potential, which is considered to be 0V. The red lead represents the positive potential, which in this case is 50V.

Since the positive point charge is located at the center of the paper, the 50V red lead should be connected to the positive point charge. The 0V black lead should be connected to the paper border.

Therefore, the answer is option a. 50V red lead on the positive point charge, 0V black lead on the paper border.