Electrical Engineering XYZ MCQs
Maximum power loss occurs during:
- Rise time
- Spread time
- Delay time
- All of above have same losses
Correct answer: 1. Rise time
Explanation: Maximum power loss typically occurs during the rise time in electronic circuits. This is because during the rise time, the transistor or the active component in the circuit is transitioning from the off state to the on state. During this transition, there is a period where both the voltage and current are changing rapidly. This results in a higher power dissipation because power is the product of voltage and current. The rapid change in both voltage and current means that there’s a higher likelihood of overlap, leading to more power dissipation.
Spread time and delay time are not typically associated with maximum power loss in electronic circuits. Spread time refers to the time taken for a signal to reach its maximum value after the transition begins, and delay time refers to the time taken for the output to change after the input changes. While there may be some power loss during these times, it’s not usually as significant as during the rise time.
Therefore, the correct answer is: Maximum power loss occurs during the Rise time.