Advertisements
Advertisements
प्रश्न
State other bigger units of electric power and express them in watt.
Advertisements
उत्तर
The other bigger units of power commonly used are:
1 kilowatt = 1000 watt
1 Horse power (H.P.) = 746 watt
Megawatt = 106 watt
APPEARS IN
संबंधित प्रश्न
1 kWh = ________ J
What is the SI unit of (i) electric energy, and (ii) electric power?
What is the maximum power in kilowatts of the appliance that can be connected safely to a 13 A ; 230 V mains socket?
How many joules are there in one kilowatt-hour?
An electrical appliance having a resistance of 200Ω is operated at 200 V. Calculate the energy consumed by the appliance in 5 minutes (i) in joules (ii) in kWh.
A potential difference of 6 V is applied across a 3 Ω resistor. What is the current flowinq throuqh the circuit?
Why is the heating element of an electric oven wound on a helix? State the reason.
A family uses a light bulb of 100W, a fan of 100W, and a heater of 1000W, each for 8 hours a day. If the cost of electricity is Rs. 2 per unit, what is the expenditure to the family per day, on electricity?
Two resistances R1 = 4Ω and R2 = 6Ω are connected in series. The combination is connected with a battery of e.m.f. 6V and negligible resistance. Calculate:
(i) the heat produced per minute in each resistor,
(ii) the power supplied by the battery.
What is the commercial unit of electrical energy?
