Question: A PMMC meter rated at 50 µA is used in a rectifier type of instrument which uses full wave rectification. What is the sensitivity on sinusoidal a.c ?
Answer:
MCQ: A PMMC meter rated at 50 µA is used in a rectifier type of instrument which uses full wave rectification. What is the sensitivity on sinusoidal a.c ?
Correct Answer:
A. 20 kΩ/V
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Related Questions
- 1. A reversed biased diode in addition to a forward biased diode is used in rectifier type voltmeters using half wave rectification. The use of reverse biased diode is
- 2. The PMMC meter used in rectifier type voltmeters are provided with shunts even at the expense of lowering sensitivity. Why?
- 3. Why are multimeters provided with separate scale for low a.c voltages?
- 4. Which meter has the highest accuracy in the prescribed limit of frequency range:
- 5. Which instrument is the cheapest disregarding the accuracy
- 6. Which instrument has the highest frequency range with accuracy within reasonable limits
- 7. The advantages of instrument transformers are
- 8. The disadvantages of shunts for use at high currents are :
- 9. The disadvantages of using multipliers with voltmeters at high voltages are :
- 10. The nominal ratio of a current transformer is :
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