Question

electric bulb of 100W is operating 10 hours daily calculate the energy consumed by it in a week in units​

Answer 1

Solution :-

Power rating of the bulb = 100 W

Duration used each day = 10 hours

Number of days = 7

Total energy consumed by the electric bulb = Power*Duration

› E = P*t

› E = 100 W * 10 hours/day * 7

› E = 7000 W-h

› E = 7 kW-h

Therefore, the energy consumed in units is 7 units.

Hope it helps!

Answer 2

Explanation:

What Uses Watts in Your Home

Electricity usage is calculated in kilowatt-hours. A kilowatt-hour is 1,000 watts used for one hour. As an example, a 100-watt light bulb operating for ten hours would use one kilowatt-hour.

How to calculate electric usage cost:

1. Volts x Amps = Watts

2. Watts ÷ 1,000 = Kilowatts (kW)

3. Kilowatts (kW) x Hours of Use = Kilowatt Hours (kWh)

4. Kilowatt Hours (kWh) x kWh rate = Cost of Usage

5. Add TVA Power Cost Adjustment charge per kWh

Below are some examples of electrical appliances found in most homes. These examples are using a 10 cents per kWh rate.

i hope it's helpful to u..❤