Define each of the following terms as applied to a.c generation: (i) instantaneous values; (ii) amplitude(4 marks)June/July 2020

(i) Instantaneous values refer to the values of a variable (e.g. voltage or current) at a specific point in time. In the context of a.c generation, instantaneous values of voltage and current refer to the values of these variables at any given moment in time during the oscillating cycle of the a.c waveform.

(ii) Amplitude refers to the maximum value reached by a variable (e.g. voltage or current) during an oscillating cycle. In the context of a.c generation, the amplitude of the voltage or current waveform refers to the maximum value reached by these variables during the oscillating cycle. The amplitude of an a.c waveform is often represented by the letter “A” and is typically measured in volts (for voltage) or amperes (for current).