Physics
What do you mean by power rating of an electrical appliance? How do you use it to calculate (a) the resistance of the appliance and (b) the safe limit of the current in it, while in use ?
Related Questions
Define the term kilowatt-hour and state it's value in S.I. unit.
How do kilowatt and kilowatt-hour differ?
An electric bulb is rated '100 W, 250 V'. What information does this convey ?
List the names of three electrical gadgets used in your house. Write their power, voltage rating and approximate time for which each one is used in a day. Hence find the electrical energy consumed by each in a month of 30 days.