Question

If 20j work has to be done in moving an electric charge of 4c from a place where a potential is 10v to another place where potential is v then find the value of v

Answer 1

Answer:

Work (W) done on a charge (Q) when moved across a potential difference (ΔV) is given by

W = QΔV

Given,

W = 20J

Q = 4C

ΔV = W/Q = 20J/4C = 5V

ΔV = 5V = Vf - Vi

Vf = 5V + Vi = 5V + 10V = 15V

The charge is moved to a point of potential 15V

Answer 2

Answer:

The correct answer to this question is 15v.

Explanation:

Given - 20j work has to be done in moving an electric charge of 4c from a place where the potential is 10v to another place.

To Find - find the value of v

The feature of subatomic particles that enables them to experience a force when put in an electric and magnetic field is known as electric charge." Positive and negative electric charges are usually transported by charge carriers protons and electrons.

It moves a charge q from point A to B, then the potential difference,

$V_{B} - V_{A} = \frac{W_{AB} }{q} ----1)$

$V_{B} = V, V_{A} = 10volt\\W_{AB} = 20J , q = 4C$

Now, put the values in equation 1) and we get

$V- 10\frac{20}{4}\\ V-10-5\\V=15volt$

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