Q6 of 52 Page 360

What is the maximum power in kilowatts of the appliance that can be connected safely to a 13A, 230V mains socket?

We know that the formula of power is:


Here;


V = 230V


I = 13A





Thus, the maximum power is 2.99kWcan be drawn from the circuit.


More from this chapter

All 52 →
4

An electric heater of resistance 500Ω is connected to a mains supply for 30 min. If 15A current flows through the filament of the heater, then calculate the heat energy produced in the heater.

 5

Why are electric bulbs filled with chemically inactive nitrogen and argon?

 7

Power of a lamp is 60 W. Find the energy in joules consumed by it in 1s.

 1

Electric fuse is an important component of all domestic circuits. Why?