Question

what must be the charge on each of 200 kg spherical masses in order for the electric force to be equal the gravitational force

Answer 1

i don't understand that statement plz repeat

Answer 2

Answer: q = 1.72×10⁻⁸ C

Explanation:

Gravitational force is the weakest force. It exists between two objects having mass.

Electrostatic force exists between charged particles. It is repulsive for like charges and attractive between unlike charges.

Let the charge on each sphere be q kept at d distance apart.

The gravitational force is equal to the electrostatic force, so:

$G\frac{M^2}{d^2} = K\frac{q^2}{d^2}$

⇒6.67×10⁻¹¹ ×200² = 9×10⁹ ×q²

⇒q = 1.72×10⁻⁸ C