Advertisements
Advertisements
प्रश्न
Which cable, one rated 15A and the other rated 5A will be thicker? Give a reason.
Advertisements
उत्तर
The cable rated 15A will be thicker. The reason is that thicker the wire, less is its resistance and hence higher is its current carrying capacity.
संबंधित प्रश्न
What is meant by "electric power"?
Electrical power P is given by the expression P = (Q × V) ÷ time. What do the symbols Q and V represent?
An electric kettle is rated 2.5 kW, 250 V. Find the cost of running the kettle for two hours at Rs. 5.40 per unit.
A current passes through a resistor. Let K1 and K2 represent the average kinetic energy of the conduction electrons and the metal ions, respectively.
In an electric radiator or room heater, state with reason, why the porcelain tube wound with a nichrome wire is placed between the pole and principal focus of the parabolic concave reflector.
Two lamps are rated 220V, 50W and the other rated 220V, 100W are connected in series with the mains of 220 V. Explain, why the 50W lamp glows more?
What is the function of the split rings in a d.c. motor?
Three 250 W heaters are connected in parallel to a 100 V supply, Calculate the energy supply in kWh to the three heaters in 5 hour.
1 mV is equal to:
Electric power is inversely proportional to ____________.
