Question

Observe the Current and Voltage rating of the following electrical appliances at your
home and fill the following observation table.
S.NO Name of the
appliance

Current rating (
I in Ampere)

Voltage rating
(V in volt)

R = V/ I (in
Ohm)

1 CFL bulb
2 Fan
3 T.V
4 Refrigerator
5 Mixer
6 Cooler / AC
7 LED Bulb
8 Mobile charger
9 Rice Cooker/
Microwave
10 Washing Machine
appliance

Current rating (
I in Ampere)

Voltage rating
(V in volt)

R = V/ I (in
Ohm)

1 CFL bulb
2 Fan
3 T.V
4 Refrigerator
5 Mixer
6 Cooler / AC
7 LED Bulb
8 Mobile charger
9 Rice Cooker/
Microwave
10 Washing Machine

Answer 1

Answer:

(i) Let Energy consumed =Power×Time

=1000×2=2000kWh

(ii) 1kWh=3.6×10

6

J

∵ Energy consumed =2000×3.6×10

6

J

=7.2×10

9

J.