What is the power of a lamp which consumes 1000 J of electrical energy in 10 seconds?

Power= 100 W.

What is power define 1watt of power a lamp consumes 1000j of electrical energy in 10s What is the power?

Power is given by the expression, Power=Work done /Time. Work done = Energy consumed by the lamp = 1000 J. Power=1000 / 10 = 100 Js−1. = 100 W.

What is power a lamp?

Wattage of a lamp is the amount of energy/power that the lamp consumes and lumen is a unit for the amount of light/brightness produced by a light source.

What is the commercial unit of energy is?

The commercial unit of electrical energy is a kilowatt-hour (kWh).

What is power class 9th?

Power of a body is defined as the rate of doing work by the body. unit of power is joule per second that is nothing but watt (W).

What is meant by 1 watt power?

1 watt is the power of an appliances which consumes energy at the rate of 1 joule per second.

What does 1 kWh mean?

The kilowatt-hour (SI symbol: kW⋅h or kW h; commonly written as kWh) is a unit of energy equal to one kilowatt of power sustained for one hour or 3600 kilojoules (3.6 megajoules). It is commonly used as a billing unit for energy delivered to consumers by electric utilities.

How is lamp power calculated?

To find the kilowatt-hours your light bulb consumes per month, multiply the kilowatt use by the number of hours it’s on each month. Example 1: The incandescent bulb uses 0.06 kW of power and is on for 180 hours a month. Its energy usage is (0.06 kW * 180 hours/month) = 10.8 kilowatt-hours per month.

How much power does a lamp use?

Light Bulbs A LED light bulb uses just seven to ten watts while a fluorescent light bulb consumes 16-20 watts, an incandescent light bulb will use 60 watts typically and cost about 0.6 cents an hour to run, according to the energy use chart. Here’s how to pick LED lights if you’ve been on the fence about them.

What is commercial unit of electrical energy Class 10?

Kilowatt-hour
The commercial unit of energy is Kilowatt-hour denoted by kWh.

What is power in 10th class?

power is defined as the rate of doing work. power is measured in watt which is equal to jule per second. power can also measure as the product of force and velocity of an object. electric power is defined as the rate of doing work by electricity.