Asked by Anonymous
A charged particle of mass 6.38x10^-31kg is suspended motionless in the air by an electric field. If the electric field is 7.52x10^-21 N/C downwards, what is the magnitude and sign of the charge of
the particle?
the particle?
Answers
Answered by
drwls
Require than m * g = q * E
q is the charge. m is the mass in kg.
g is the acceleration of gravity, in m/s^2.
E is the field strength, in N/C
Solve for the field, charge, q, in Coulombs.
The charge must be negative so that the upward electrical force can balance the weight.
q is the charge. m is the mass in kg.
g is the acceleration of gravity, in m/s^2.
E is the field strength, in N/C
Solve for the field, charge, q, in Coulombs.
The charge must be negative so that the upward electrical force can balance the weight.
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