GATE EE 2019 Set 1 — Question 42
Go beyond PYQs with Success TrackerAI-powered personalised practice and doubt support. Unlimited practice on eligible plans; AI usage limits apply.MCQ+2 / -0.67EasyRange Extension (Shunts)Measurement PrinciplesElectrical & Electronic MeasurementsPMMC & Moving IronElectrical Quantity Measurement
Electrical & Electronic Measurements → Electrical Quantity Measurement → PMMC & Moving Iron
Last updated
Question
A moving coil instrument having a resistance of , gives a full-scale deflection when the current is . What should be the value of the series resistance, so that it can be used as a voltmeter for measuring potential difference up to ?
Correct answer
(D) 9990 Ω
Solution
Given:
Meter resistance,
Full-scale deflection current,
Maximum voltage to be measured, The voltage across the meter for full-scale deflection is:The multiplying factor is given by:The required series resistance to extend the range of a voltmeter is:Thus, the correct option is (D).
Meter resistance,
Full-scale deflection current,
Maximum voltage to be measured, The voltage across the meter for full-scale deflection is:The multiplying factor is given by:The required series resistance to extend the range of a voltmeter is:Thus, the correct option is (D).
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 Electrical Quantity Measurement
2026 Set 1 Q39In the circuit shown, the phase currents are A…2026 Set 1 Q57The resistance values of the Wheatstone bridge shown are: , ,…2025 Set 1 Q31The maximum percentage error in the equivalent resistance of two parallel-connected resistors of…2025 Set 1 Q58In an experiment to measure the active power drawn by a single-phase RL Load connected to an AC…2025 Set 1 Q59In the Wheatstone bridge shown below, the sensitivity of the bridge in terms of change in balancing…