A particle of mass m is in equilibrium in a vertical electric field of magnitude E directed upward. The charge on particle is image.png mgE image.png 2mgE
Answers
the charge on particle is mg/E
Given : A particle of mass m is in equilibrium in a vertical electric field of magnitude E directed upward.
To find : The charge on the particle.
solution : as it is given that a particle of mass m is in equilibrium in a vertical electric field of magnitude E directed upward.
at equilibrium, weight of particle ( directed downward) is balanced by electric field ( direction vertically upward)
so weight of particle = electric field
⇒mg = qE
⇒q = mg/E
Therefore the charge on particle is mg/E
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