In the diagram above, a 200 W bulb is lighted by a 240 V a.c mains supply. If 1kwh is sold at N40, the cost of keeping the bulb lighted for a day is?

Similar Questions

Sound travels with a different speed in media. In what order does the velocity of sound increase in ...

If a body moves with a constant speed and at the same time undergoes an acceleration, its motion is ...

A cell gives a current of 0.15A through a resistance of 8$\Omega$ and 0.3A. When the resistance is...

Which gas produces a red coloured light in a discharge tube? ...

A body executing a simple harmonic motion has an angular velocity of 22 radians per second. If ...

A wave has a frequency of 2Hz and a wavelength of 30cm. The velocity of the wave is ...

An astronomical telescope has objectives and eye-piece lenses of focal length 3.5m and 5cm respectiv...

Longitudinal waves do not exhibit ...

If the refractive index of crown glass is 1.51, its critical angle is?...

Which of the following particles conduct electricity through salty water? ...