Advertisements
Advertisements
प्रश्न
What is consumed while using different electrical appliances, for which electricity bills are paid?
Advertisements
उत्तर
Electrical energy in kWh which is commercially called a unit of electrical energy.
1 kWh = 1 kW × 1 hr = 1 unit of electricity.
APPEARS IN
संबंधित प्रश्न
A bulb is connected to a battery of p.d 4 V and internal resistance 2.5 Ω. A steady current of 0.5 A flows through the circuit. Calculate:
- the total energy supplied by the battery in 10 minutes
- the resistance of the bulb and
- the energy dissipated in the bulb in 10 minutes.
Write an expression for the electrical energy spent in flow of current through an electrical appliance in terms of current, resistance and time.
Name the S.I. unit of electrical energy. How is it related to Wh?
How do kilowatt and kilowatt-hour differ?
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.
Find out the energy conversion that take place in the following.
Electric Iron box : _______ _______
Electrical energy is used to run electric trains.
Electric eel is a ______.
Electric eel can generate ______.
Name the particles of atom?
What is electric energy?
What are the different ways electricity can be generated?
Write the uses of Electric energy.
Choose the odd one:
The ground state energy of a hydrogen atom is - 13.6 eV When its electron is in the first excited state, its excitation energy is
A bulb of power 60 W is used for 12.5 h each day for 30 days. Calculate the electrical energy consumed.
