Magnitude & Direction of Electric field

AI Thread Summary
To balance the weight of an electron and a proton with an electric field, one must first calculate their respective weights using the formula for gravitational force. The weight of an electron is approximately 9.81 x 10^-31 kg, while a proton weighs about 1.67 x 10^-27 kg. The electric field must exert a force equal to these weights to achieve balance, which can be calculated using the equation F = qE, where F is the force, q is the charge, and E is the electric field strength. The direction of the electric field will depend on the charge of the particle; it will be directed upward for the electron (negative charge) and downward for the proton (positive charge). Understanding these concepts and applying them will clarify how to determine the magnitude and direction of the electric field needed for balance.
Ahsan123
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What are the magnitude and direction of the electric field that will balance the weight of (a) an electron and
(b) a proton?

Please I am getting confused in this question. I want help with complete explanation. Thanks in advance. How will it done..?
 
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Do you have any ideas where to start?

Some hints: 1) draw a force diagram, it should just have 2 forces. 2) what is the weight of an electron/proton, and how are they affected by an electric field? (i.e. what force is exerted on them by an electric field?)
 
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