Question

define electrical energy and prove that w = v^2 t / r
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Answer 1

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The energy consumed by an electric circuit to flow current through it is referred as electrical energy. This energy is provided by the battery to every electric charge. The work required to keep the charge Q in motion by the battery of voltage V is

W=VQ

From the definition of electric current,

Q=It

Therefore, W=VIt

According to Ohm’s law, V=IR

Therefore, W=(IR)It

Or,W=I2Rt

Thus, the current flowing through the resistor R for time t is I, the electrical energy consumed to is W which is converted into heat energy.

$\huge\mathfrak\pink{itz \: Sujitha}$

Answer 2

Answer:

Electrical energy is a energy derived as a result of movement of electrons. It is also the energy which refers to energy that has been converted from electric potential energy.

W=VQ

Q=IT

Therefore, W=VIT

According to Ohm's law, VI=IR

Therefore, W=(IR) It

or, W=12RT