GATE EE 2026 Set 1 — Question 27
Go beyond PYQs with Success TrackerAI-powered personalised practice and doubt support. Unlimited practice on eligible plans; AI usage limits apply.MCQ+1 / -0.33EasyPower Semiconductor DevicesPower Electronics
Power Electronics → Power Semiconductor Devices
Last updated
Question
The figure shows a straight-line approximation for the forward characteristics of a power diode. A continuous on-state current of 15 A is flowing through the diode. 
What is the power loss in the diode?
Correct answer
(C) 18.6 W
Solution
1.Determine the diode model parameters:
From the graph, the characteristic is a straight line starting at V (where ).The slope resistance .
The voltage drop across the diode is .
2.Calculate Power Loss:
For a continuous DC current A:W.
Continue learning with Success Tracker
A step still unclear? Work through it with support
Use Success Tracker to ask about the reasoning, then try another GATE EE question to check your understanding.
AI-powered practice· Unlimited practice on eligible plans
- PYQs with solutions
- Attempt available previous-year questions, then compare your reasoning with the worked solution. Coverage varies by stream.
- Practice that adapts
- Choose a topic, work on weaker areas and bookmark questions to revisit. Your attempts feed your progress tracking.
- AI doubt support
- Ask follow-up questions about a step or concept while practising, instead of stopping at the final answer.
Unlimited practice is available on eligible plans. Free practice and AI usage have limits; check the current plan allowances before choosing.
This page stays readable without an account. AI responses can be wrong; check them against the solution and source material.
More questions on Power Semiconductor Devices
2026 Set 1 Q28Consider the circuit shown in Figure (a). A gate pulse is applied between time instants …2026 Set 1 Q34Consider the circuit shown. Assume that the diode is ideal. The supply voltage…2026 Set 1 Q47Consider the single-phase voltage source inverter circuit feeding an inductive load (). Assume…2026 Set 1 Q48Consider the boost converter circuit shown. Assume that the semiconductor devices are ideal. In…2025 Set 1 Q27The input voltage and current of a converter are given by,…