Question

What is electrical energy?
Write expression for electrical energy.


kindly give me perfect answer ☺️​

Answer 1

Explanation:

Convenient and Controllable form of energy using electric bulb, fans, etc is electrical energy.

( or )

The amount of work done or energy consumed in a given amount of time.

Expression for electrical energy : -

V = I R

Answer 2

Aɴsᴡᴇʀ

☯︎ Electrical Energy :-

• When the current passing through a conductor then electric current is converted into heat, light and other form of energy, this type of energy which is produced by electric current is called electrical energy.

• SI unit of electrical energy is joule.

_____________________

☯︎ Expression for Electrical Energy :-

• Let a conductor is connected with a source of ‘V’ volt and let ‘R’ is the resistance and ‘I’ is the current flowing through the conductor for ‘t’ time.

the charge flowing through the conductor

• charge = current × time
• q = It

the work done by the source of flow this charge is

• work = Voltage × charge
• W = Vq

but q = It

• so, W = VIt

this work is called electric energy of the electric device

• H = VIt

but by ohm's law, V = IR

➪ H = IR × It

➪ H = I²Rt

or

➪ H = V × V/R × t

➪ H = V²t/R