GATE EE 2018 Set 1 — Question 33
Go beyond PYQs with Success TrackerAI-powered personalised practice and doubt support. Unlimited practice on eligible plans; AI usage limits apply.NAT+1 / -0MediumSemi & Full Converters (1φ)AC-DC ConvertersPower Electronics
Power Electronics → AC-DC Converters → Semi & Full Converters (1φ)
Last updated
Question
The waveform of the current drawn by a semi-converter from a sinusoidal AC voltage source is shown in the figure. If A, the rms value of fundamental component of the current is ___________A (up to 2 decimal places).

Correct answer
16.9 to 17.7
Solution
The source current waveform of a single-phase semi-converter with a constant load current is shown in the figure. The current is for and for .From the figure, the firing angle .The fundamental component of the source current is given by:The RMS value of the fundamental component is:Using the identity :Thus, the rms value of the fundamental component of the current is approximately 17.39 A.
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 AC-DC Converters
2026 Set 1 Q27The figure shows a straight-line approximation for the forward characteristics of a power diode. A…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…