Calculate the resistance of the filament of a lamp rates 240 V, 40 W

Question details

Exam body

WAEC

Subject

Physics

Year

1990

Question no.

#45

Type

Objective

More from this paper

• Q41A work of 30 joules is done is transferring 5 millicoulombs of charge from a…
• Q42What is the value of R when G shows no deflection in the circuit illustrated…
• Q43A charge of 1.0 x 10 -5 Coulombs experience force of 40N at a certain point in…
• Q47A cell of e.m.f. 1.5 V and internal resistance of 2.59 is connected in series…
• Q48A rectangular coil of wire can rotate in a magnetic field. The ends of the coil…
• Q49How long will it take to heat 3 kg of water from 28 o C to 88 o C in an electric…