Question

sHow much energy is given to each coulomb of charge passing through a 8V battery.
A) 6J
B) 8J
C) 0J
D) 1J

Answer 1

As given in the question one coulomb of charge and 8 vlot. Multiplied both given values through this we can easily find out heat energy. From the principle of conservation of energy we know that the work done by the system is equal to the energy supplied to that system.

Formula:
$W = V \times q$

Complete answer:
$V = \dfrac{W}{q}$
W is the work done in the system
V is the potential difference
q is the charge
rearranging the terms we get
$\Rightarrow W = V \times q$
First we have to write given values
Charge q = 1 C
Potential difference V = 8 v
Substitute given values in the formula we get.
$\Rightarrow W = 8 \times 1$
$\therefore W = 8 J$
Hence, the energy given to each coulomb of charge passing through a 8 v battery is 8 J.

Therefore, option B is the correct answer.

Additional information:
Work done can be measured in joule J, charge is measured in coulomb, its symbol is C, and potential difference is measured in volts its symbol is V.
Potential difference is nothing but voltage supplied to the system.
There are two types of electric charge, positive and negative. We can define it as a physical property of matter that causes it to experience a force when placed in an electromagnetic field.
Potential difference is defined as the current flows between two points A and B of an electric circuit. If we want the charge between the points A and B, this means it is not necessary to
know the exact potential at each point A and B.

Note:
Principle of conservation of energy the energy given to each coulomb of charge is equal to the amount of work required to move it, work done is equal to the energy supplied to that system.