Question

How do you differentiate between energy and power?

Answer 1

$\textbf {ENERGY}$

➡Energy is defined as the capacity to do work.

➡The unit used to measure energy is joules or watt-seconds.

➡W is the symbol which denotes energy.

➡Energy changes from one form to another.

➡Energy is a time quantity or component.

➡Energy is known to be stored which can be used in future.

➡Eg. Energy in automobiles.

$\textbf {POWER}$

➡Power is defined as the rate of work done or energy delivered.

➡The unit used to measure this is watt or joules per second.

➡The symbol used to denote power is P.

➡Power cannot be transformed from one type to another.

➡It is an instantaneous quantity.

➡Power quantity is not storable or cannot be stored.

➡Eg. Power in electricity