If you use 500w of power for one day u have used

Your device is 500W. If you plug your appliance with AC mains it will consume 500W. The device needs 500W of power to run smoothly. Now 1 unit of electricity is 1000W or 1kW. If an appliance of 1kW is running for 1 hour it will consume 1 unit of energy. Now your appliance is of 500W i.e. 500/1000=0.5kW(you have to convert in kilo watt). Now units consumed by your appliance will be: kilowatt rating*no. of hours

in 1 hour= 0.5*1 =0.5 units of electricity.

If it is running for 2 hours then= 0.5*2=1 unit of electricity

If it is running for 3 hours then= 0.5*3=1.5 unit of electricity

Depending on your Tariff you will get the bill, for eg.(just random value): Your electric utility company is charging units for Rs. 2, then your bill will be units consumed*cost of unit: in this case

for 1 hr: 0.5*2 = Rs. 1

for 2 hr: 1*2 = Rs. 2

for 3 hr: 1.5*2 = Rs. 3

Hope this helps.

Explanation:

i need the answer to this too but idk it ; -;

electromagnetic shielding is the practice of reducing the electromagnetic field in a space by blocking the field with barriers made of conductive or magnetic materials. shielding is typically applied to enclosures to isolate electrical devices from their surroundings, and to cables to isolate wires from the environment through which the cable runs. electromagnetic shielding that blocks radio frequency electromagnetic radiation is also known as rf shielding.

the shielding can reduce the coupling of radio waves, electromagnetic fields and electrostatic fields. a conductive enclosure used to block electrostatic fields is also known as a faraday cage. the amount of reduction depends very much upon the material used, its thickness, the size of the shielded volume and the frequency of the fields of interest and the size, shape and orientation of apertures in a shield to an incident electromagnetic

from wikipedia