Q6 of 52 Page 382

Mention two special features of the material used as an element of an electric iron.

Two features of the material used as an element of an electric iron are:

a) It should have low melting point.


b) It should have a very high resistance.


More from this chapter

All 52 →
4

Relate 1 kWh and SI unit of energy.

 5

You are given three bulbs of 40 W, 60 W and 100W. Which of them has lower resistance?

 7

Write the advantages of connecting electrical appliances in parallel and disadvantages of connecting them in series in a household circuit.

 8

Derive the relation between kilowatt hour and joule.