A 19 nC charge is moved in a uniform electric field. The electric field does 5.3 μJ of work as the charge moves from point A to B. The electric field does -12.2 μJ of work as the charge moves from point C to B. What is the potential difference as the charge moves from point A to point B? V What is the potential difference as the charge moves from point C to point B? V What is the potential difference as the charge moves from point A to point C? V

The potential difference between points A and B is 278.95 volts.

The potential difference between points B and C is -642.10 volts.

The potential difference between points A and C is -363.15 volts.

Explanation:

Given :

Charge of the particle, q = 19 nC = 19 x 10⁻⁹ C

Work is done to move a charge from point A to B, W₁ = 5.3 μJ

Work done to move a charge from point B to C, W₂ = -12.2 μJ

Let V₁ be the potential difference between point A and B, V₂ be the potential difference between point B and C and V₃ be the potential difference between point A and C.

The relation between work done and potential difference is:

W = qV  

V = W/q    ....(1)

Using equation (1), the potential difference between points A and B is:

Substitute the suitable values in the above equation.

V₁ = 278.95 V

Using equation (1), the potential difference between points B and C is:

Substitute the suitable values in the above equation.

V₂ = -642.10 V

The potential difference between points A and C is:

V₃ = V₁ + V₂

V₃ = 278.95 - 642.10

V₃ = -363.15 V

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explanation:

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