The control grid in a cathode ray oscilloscope (CRO) is used to control the brightness of the beam on the screen. Explain how this is achieved.
Teachers Of Physics Latest Questions
state the reason why current produced by a simple cell falls rapidly when the cell is being used.
State and explain factors that affect capacitance of parallel-plate capacitor.
Differentiate between Zener breakdown and Avalanche breakdown as used in electronics.
Briefly explain the working of a transformer. Hence, explain why a transformer cannot be used to step-up voltage from a battery.
