Physics, asked by zara3534, 1 year ago

An electric charge of 12 coulomb flows at 120 volt potential difference in an electric heater .How much energy will consumed in heater​

Answers

Answered by Anonymous
40

Given,

Charge on electric heater = 12 C

Potential difference across = 120 V

We know ,

Current , I = q / t                        [where q is the charge and t is the time]

Now from above , It = q

For energy ,

The total work done by the source of emf in maintaining an electric current in a given circuit for  a given time is called the electric energy consumed by the circuit.

It depends on Power and Time.

E = P . t

= VI .t.                       [P = VI]

From above we  know,   I.t = q

E = V . q

on putting the values,

= 120 * 12

= 1440 Joule

Thus 1440  Joule energy will consumed in heater.

Answered by Anonymous
46

» An electric charge of 12 coulomb flows at 120 volt potential difference in an electric heater.

Here ..

  • Charge (Q) = 12C

  • Potential difference (V) = 120V

_________ [ GIVEN ]

• We have to find that how much energy (E) consumed in the heater.

___________________________

We know that ..

→ I = \dfrac{Q}{t}

Here ..

Q = charge, I = current and t = time

So ..

→ Q = It _____ (eq 1)

Also ..

→ E (Energy) = P(Power) × t(time)

P = VI

→ E = VI (t)

→ E = VQ _____ [From (eq 1)]

We have V = 120 V and Q = 12 C

=> E = 120 × 12

=> E = 1440

____________________________

1440 J is the energy consumed in the heater.

_______ [ ANSWER ]

____________________________

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