If an electrical appliance of $R Ω$ resistance draws a current ‘I’ for time ‘t’ and connected across a battery of potential V then the energy consumed by the appliance will be:

$V I t$

No worries! We‘ve got your back. Try BYJU‘S free classes today!

$I^{2} R t$

No worries! We‘ve got your back. Try BYJU‘S free classes today!

$\frac{V^{2}}{R} t$

No worries! We‘ve got your back. Try BYJU‘S free classes today!

All of the above

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D
All of the above

Energy dissipated = work done $= P o w e r \times t i m e$
Work done for a charge q to move in a potential difference $V i s q \times V$
Power = Work done per unit time $= \frac{q \times V}{t}$
$∴, P o w e r = V I (I = \frac{q}{t})$
$∴,$ Energy dissipated = VIt (Power = VI)
Energy dissipated $= I^{2} R t (V = I R)$
Energy dissipated $= \frac{V^{2}}{R} t (I = \frac{V}{R})$

Suggest Corrections

Similar questions

Q. If an electrical appliance of

R Ω

resistance draws a current

I

for time

t

, and is connected across a battery of potential

V

, then the energy consumed by the appliance is:

Q. An electrical appliance is rated 1500 W, 250 V. This appliance is connected to 250 V mains.
Calculate :
(i) The current drawn
(ii) The electrical energy consumed in 60 hours
(iii) The cost of electrical energy consumed at Rs. 2.50/kWh.

An electrical appliance having a resistance of $200 Ω$ is operated at 200 V. Calculate the energy consumed by the appliance in 5 minutes (i) in joule, (ii) in kWh.

Join BYJU'S Learning Program

If an electrical appliance of RΩ resistance draws a current ‘I’ for time ‘t’ and connected across a battery of potential V then the energy consumed by the appliance will be:

If an electrical appliance of $R Ω$ resistance draws a current ‘I’ for time ‘t’ and connected across a battery of potential V then the energy consumed by the appliance will be: