Which of the following would reduce the resistance of a metal wire?
a. increasing its thickness
b. increasing its temperature
c. increasing its length
d. all of the above user: what is the difference in electrical potential energy between two places in an electric field?
a. current
b. resistance
c. potential difference
d. induction

two charges are fixed in place on the x-axis as shown. the charge at x = 0 is negative and has magnitude q = 2 μcoulombs (1 μcoulomb = 10-6 coulombs). the charge at x = d, (d = +12 cm), is positive and has magnitude q = 4 μcoulombs. find a point x = xo along the x-axis at which the electric field is zero.

b. lifting dumbbell weight at 20-degree angle from the body after a 45-degree angle