Question

Answer with the help of options

Answer 1

Question: The electric field in the direction vertically downwards is applied on a particle of mass 48 x 10^(-19) kg ams a charge eek equivalent to two electrons. If mass is balanced at an ins_tant. Electris field strength is

Answer:

15 N/C

Explanation:

Charge(q) = 2e = 2(1.6 x 10^(-19)) C

Mass(m) = 48 x 10^(-20) kg

Let electric field strength be E.

In this condition, mass is balanced

Electrostatic force = gravitational force

=> qE = mg

E = mg/q

E = (48 x 10^(-20) x 10) / 2(1.6 x 10^(-19))

E = (48 x 10^(-19)) / (3.2 x 10^(-19))

E = 48/3.2

E = 15 N/C