A transformer is not considered to be an amplifier.Explain
Explain how submarines float or sink while navigating through water bodies.
state the reason why current produced by a simple cell falls rapidly when the cell is being used.
Briefly explain the working of a transformer. Hence, explain why a transformer cannot be used to step-up voltage from a battery.
state three ways in which the strength of magnetic field can be increased
Two identical tubes, A and B, held horizontally contain air and water respectively. A small quantity of coloured water is introduced at one end of A while at the same time, a small quantity of coloured water is introduced at ...
