What work is done when a charge of 8 μC is transferred from a field point with a potential of 20 V

What work is done when a charge of 8 μC is transferred from a field point with a potential of 20 V to another point with a potential of 12 V?

To determine what kind of work A is performed when the charge q is transferred from a point of the field with a potential φ₁ to another point with a potential φемся, we use the formula:

A = q ∙ (φ₁ – φ₂).

From the condition of the problem it is known that the charge q = 8 μC = 8 ∙ 10 ^ (- 6) C was moved from the point of the field with the potential φ₁ = 20 V to the point with the potential φ₂ = 12 V. Substitute the values of physical quantities into the calculation formula:

A = 8 ∙ 10 ^ (- 6) Cl ∙ (20 V – 12 V);

A = 64 ∙ 10 ^ (- 6) J = 64 μJ.

Answer: the absolute value of the work is 64 μJ.