Question

A sphere of mass 50gm is suspended by a string in an electric field of intensity 5N/C acting vertically upward. If the tension in the string is 520 millinewton, the charge on the sphere is (g=10m/s2)​

Answer 1

Answer:

A sphere of mass 50gm is suspended by a string in an electric field of intensity 5N/C acting vertically upward. If the tension in the string is 520 millinewton, the charge on the sphere is (g=10m/s2)

Answer 2

To know the value of charge on the sphere we have to balance electric field intensity by gravitational force.

Hence,

F = mg

qE = mg

q×5 = 0.050×10

q = 0.1 C

Hence charge on the sphere will be 0.1 C.