Question

4J of energy is gained by one coulomb of charge passing through a battery whose one terminal has +7V and the other terminal has X V potential .What is the value of X?

Answer 1

The energy is given to each coulomb of charge passing through a 6 v battery is 6 J. The energy is given to each coulomb of charge is equal to the amount of work required to move it. Hence, The energy is given to each coulomb of charge passing through a 6 v battery is 6

Answer 2

The value of X is 12 V.

Explanation:

Given that,

Charge = 1 C

Energy = 4 J

Voltage on one terminal = 7 V

Voltage on other terminal = X V

We need to calculate the value of X

Using formula of potential difference

$V=\dfrac{E}{Q}$

$V_{2}-V_{1}=\dfrac{E}{Q}$

Where, E = energy

Q = charge

V = potential difference

Put the value into the formula

$X-7=\dfrac{4}{1}$

$X=12\ V$

Hence, The value of X is 12 V.

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Topic : potential difference

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