12. Differentiate between direct current (DC) and alternating current (AC). Define the following terms for AC: (i) Cycle, (ii) Time period, (iii) Frequency.

Difference Between Direct Current (DC) and Alternating Current (AC) Parameter Direct Current (DC) Alternating Current (AC) Direction Flows in one constant direction. Changes direction periodically. Waveform A constant, unidirectional flow of current. The current alternates between positive and negative cycles, forming a sinusoidal (or other periodic) waveform. Voltage Constant voltage. Voltage alternates between positive and … Read more