Question

Find the energy consumed in 10 hours by 5 devices of power 250 W each.​

Answer 1

Answer:

power consumed by one device=250 watt

power consumed by four devices=250×5

                                                     = 1250 watt

time taken=10 hours

                                         energy=power × time

energy consumed=1250 × 10

                              =12500 J

one power :when one joule energy is consumed per hour thin this is called one power or  one watt.

Answer 2

Answer:

Explanation:

12500 Joules is the required energy.

Given:-

Time taken ,t = 10 h

Number of Devices ,n = 5

Power of each device ,P = 250 W

To Find:-

Energy Consumed by Devices,E

Solution:-

As we have to calculate the Energy Consumed by devices in 10 hours .

Energy is defined as the Product of Power and Time.

• E = P× n × t

Where,

P denote Power of device

n denote number of devices

t denote time

Substitute the value we get

→ E = 250×5 × 10

→ E = 1250 × 10

→ E = 12500 J or 12500 Wh = 12.5 kWh

Hence , the energy consumed by the devices is 12500 Joules .