If the electric potential at a point is 300 V and a charge of 3 C is placed at t

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Question: If the electric potential at a point is 300 V and a charge of 3 C is placed at that point, what is the force acting on the charge?

Options:

Correct Answer: 0 N

Solution:

The force on a charge in a static electric field is not determined by potential alone; it depends on the electric field, which is not given.

If the electric potential at a point is 300 V and a charge of 3 C is placed at that point, what is the force acting on the charge?

If the electric potential at a point is 300 V and a charge of 3 C is placed at that point, what is the force acting on the charge?

Step 1: Understand that electric potential (measured in volts) tells us how much potential energy a charge would have at a point in an electric field.
Step 2: Recognize that the force acting on a charge in an electric field depends on the electric field strength (measured in volts per meter), not just the electric potential.
Step 3: Note that the electric potential is given as 300 V, but we do not have information about the electric field strength at that point.
Step 4: Conclude that without knowing the electric field strength, we cannot calculate the force acting on the charge.

Electric Potential and Electric Field – Electric potential (voltage) indicates the potential energy per unit charge, while the electric field is the force per unit charge. The force on a charge depends on the electric field, not just the potential.
Force on a Charge – The force acting on a charge in an electric field is calculated using the formula F = qE, where F is the force, q is the charge, and E is the electric field strength.