Question: In order that value of an inductance standard should remain constant irrespective of the value of current carried by its coil :
Answer:
MCQ: In order that value of an inductance standard should remain constant irrespective of the value of current carried by its coil :
Correct Answer:
A. Cores of ferromagnetic materials should be used
Discuss a Question
Related Questions
- 1. In order that the values of effective resistance and inductance of a standard remain unaffected due to changes in frequency :
- 2. The value of effective inductance standard inductors at low and medium frequencies is approximately :
- 3. An imperfect capacitor is represented by a capacitance C<sub>p</sub>, in parallel with a resistance R<sub>p.</sub> the value of its dissipation factor (tan δ) is :
- 4. Capacitors with solid dielectric materials are used because :
- 5. The effective value of capacitance of standard capacitor at low and medium frequencies is
- 6. If an analog PMMC 0 – 10 A ammeter is provided with no controlling mechanism and the moving part are free to rotate, what will be the reading of the instrument if a current of 1 A (d.c) passed through the moving coil (the torque produced is sufficient to overcome the frictional losses)
- 7. A spring controlled instrument uses phosphor bronze springs to produce controlling torque. if the ratio of length of spring to thickness of spring is 3000 for a deflection 90°, what should be this ration if the scale is to extended to 120°
- 8. A voltage of 200 V produce a deflection of 90° in a PMMC spring controlled instrument. if the same instrument is provided with gravity control, what would be the deflection?
- 9. A spring produces a controlling torque of 16 × 10<sup>-6 </sup>Nm for a deflection of 120°. Suppose its width and length are made two times their original value and thickness is halved , the value of controlling torque for the same deflection will be :
- 10. Air friction damping should not be used where the deflecting torque in the instrument is produced due to
You may be interested in:
Electrical and Electronics Measurements and Instrumentation MCQsRecently Added Articles
5 Best Amazon Advertising Agencies for Growing Brands
Last updated on: November 6, 2026Posted by: ExamRadar
How Image to Text Conversion Make Printed Study Materials Easier to Use?
Last updated on: October 23, 2026Posted by: ExamRadar
7 Best Online Exam Makers for Teachers, Schools, and Businesses
Last updated on: October 21, 2026Posted by: ExamRadar
How to pick a Bintan resort when you’ve only got 48 hours
Last updated on: September 23, 2026Posted by: ExamRadar
Features to Look for While Choosing the Best Automation Tool
Last updated on: July 15, 2026Posted by: ExamRadar
How Do Java Development Teams Use Docker and Kubernetes to Deploy Applications?
Last updated on: April 24, 2026Posted by: ExamRadar
AI vs Machine Learning: Key Differences Every Professional Should Know
Last updated on: February 13, 2026Posted by: ExamRadar