The sign of a is positive. The sign of b is negative. If it can be determined, what is the sign of the mean of a and b?

What is sign?

If the dividend and the divisor have like signs what is the sign of the quotient ?

Figures (a) and (b) show the field lines of a positive and negative point charge respectively. (a). Gives the sign of the potential difference V_(P)-V_(Q) : V_(B)-V_(A) (b) Given the sign of the potential energy difference of a small negative charge between the points Q and P, A and b (c) Give the sign of the work done by the field in moving a small positive charge from Q to P. (d) Give the sign of the work done by external agencyin moving a small negative charge from B to A. (e) Does the kinetic energy of a small negative charge increase or decrease in going from B to A?

If a and b are two negative integers, then the sign of a + b is

When work (w) is done by the system, the sign of w is negative. But when it is done on the system, the sign of w is positive, give reason.

Figures (a) and (b) show the field lines of a positive and negative point charge respectively. (a) Give the signs of the potential difference V_(P)-V_(Q), V_(B)-V_(A) . (b) Give the sign of the potential energy difference of a small negative charge between the points Q and P, A and B. (c) Give the sign of the work done by the field in moving a small positive charge from Q to P. (d) Give the sign of the work done by the external agency in moving a small negative charge from B to A. (e) Does the kinetic energy of a small negative charge increase or decrease in going from B to A?

Figures 2.8 (a) and (b) show the field lines of a positive and negative point charge respectively. (a) Give the signs of the potential difference V_(P)-V_(Q): V_(B)-V_(A) . (b) Give the sign of the potential energy difference of a small negative charge between the points Q and P, A and B. (c) Give the sign of the work done by the field in moving a small positive charge from Q to P. (d) Give the sign of the work done by the external agency in moving a small negative charge from B to A. (e) Does the kinetic energy of a small negative charge increase or decrease in going from B to A?

Figures 2.8 (a) and (b) show the field lines of a positive and negative point charge respectively. (a) Give the signs of the potential difference V_(P)-V_(Q): V_(B)-V_(A) . (b) Give the sign of the potential energy difference of a small negative charge between the points Q and P, A and B. (c) Give the sign of the work done by the field in moving a small positive charge from Q to P. (d) Give the sign of the work done by the external agency in moving a small negative charge from B to A. (e) Does the kinetic energy of a small negative charge increase or decrease in going from B to A?

Give the sign of a fraction in which the numerator is negative and the denominator is negative.