Advertisements
Advertisements
प्रश्न
An electric kettle is rated 3kW, 250V. What should be the current capacity of the fuse with it?
Advertisements
उत्तर
The maximum current capacity of kettle, I = `"P"/"V" = 3000/250 = 12"A"`
Thus, the fuse should be of current capacity slightly less than 12A.
संबंधित प्रश्न
Name two safety devices which are connected to the live wire of a household electric circuit
An electric motor takes 5 amperes current form a 220 volt supply line. Calculate the power of the motor and electric energy consumed by it in 2 hours.
Name two gases which are filled in filament type electric light bulbs.
Distinguish between kilowatt and kilowatt-hour.
Two bulbs are rated 60 W, 220 V and 60 W, 110 V respectively. Calculate the ratio of their
resistances
What is the current in the circuit shown (Fig. )
Name the physical quantity which is measured in kW.
Define Kilo watt hour.
An electric bulb is marked 100 W, 230 V. What does this mean?
A consumer uses 4 lamps of 60 watt, 2 lamps of 40 watt, and 2 lamps of 100 watt. All these are used for 6 hour daily. Find the total bill for 30 days when the rate of energy is 75 paise per unit and the meter rent is Rs. 1.
