Question

Two small-sized identical equally charged
spheres, each having mass 1 mg are hanging
in equilibrium as shown in the figure. The
length of each string is 10 cm and the
angle 0 is 7º with the vertical. Calculate the
magnitude of the charge in each sphere.​

Answer 1

Answer:

Because the thickness of a wire is usually represented by its diameter. Thus when the diameter of a wire is doubled (made 2 times), its resistance becomes one-fourth (1/4), and if the diameter of a wire is halved (made 1/2), then its resistance becomes four times (4 times).