Lightning can even burn a tree because it contains tremendous amount of

Electric motors operating at low voltages tend to burn out because –

Of the two bulbs in a house, one glows brighter than the other. In this context which of the following statements is correct?

Lightning is due to

Which of the following metals is used as filament in lighting bulbs?

An incandescent electric bulb converts 20% of its power consumption into light, and the remaining power is dissipated as heat. The bulb's filament has a resistance of 200 Ω and 2 A current flows thro…