Briefly explain the working of a transformer. Hence, explain why a transformer cannot be used to step-up voltage from a battery.
Teachers Of Physics Latest Questions
State two defects of a simple cell and how it can be controlled
An astronaut in orbit around the earth may feel weightless even when the earth’s gravitational field still acts on him. Explain
helicopter of mass 3000kg rises vertically at a constant speed of 25m/s if the acceleration due to gravity is10m/s2 ,determine the resultant force working on the helicopter
Why can a magnet be used as a compass?
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 ...