Question

1.

For each statement select P for Positive, N for Negative, or Z for Zero charge (Neutral). (If the first answer is positive, the second negative, and the third neutral (zero net charge), enter PNZ. Do not enter spaces)

A) A negatively charged rod is brought close to a neutral isolated conductor, but it does not touch. The conductor is then grounded while the rod is kept close. If the ground connection is first broken, and THEN the rod is removed, what is the final charge of the conductor?
B) A positively charged rod is brought close to a neutral isolated conductor, but it does not touch. The rod is then removed. What is the final charge of the conductor?
C) A negatively charged rod is brought close to a neutral isolated conductor, but it does not touch. The conductor is then grounded while the rod is kept close. If the rod is first taken away, and THEN the ground connection is removed, what is the final charge of the conductor?

2. Decide which of the following statement about electric field lines are true, and which are false. (For each statement select T True, F False).

A) E-field lines can never cross.
B) E-field lines make circles around negative charges.
C) E-field lines point outward away from negative charges.
D) E-field lines point outward from positive charges.
E) E-field lines could begin or end in a charge-free region. (We are not counting infinity as a region!).
F) A point charge q, which is moving and crossing (perpendicular) to an E-field line will instantly change direction to exactly follow that field line
G) Where the E-field lines are denser the E-field must be stronger.

Answer 1

fat A e woul char efi hnd any change C: clv