Question: A galvanometer has a ratio of 0.9 for damped frequency oscillations to undamped frequency of oscillations. Suppose moment of inertia, stiffness constant and damping constant is made twice their original value that would be the new ratio of damped frequency oscillations to undamped frequency oscillations.
Answer:
MCQ: A galvanometer has a ratio of 0.9 for damped frequency oscillations to undamped frequency of oscillations. Suppose moment of inertia, stiffness constant and damping constant is made twice their original value that would be the new ratio of damped frequency oscillations to undamped frequency oscillations.
Correct Answer:
A. 0.9
Discuss a Question
Related Questions
- 1. A circuit of 2 µ A is passed through the moving coil of an undamped d’Arsonval galvanometer which has a displacement constant of 2 Nm/A and a control constant of 10 ×10<sup>-6 </sup>Nm/rad. The moving oscillates with an amplitude of :
- 2. If the damping in the d’Arsonval galvanometer is only due to electromagnetic effects,the resistance required for critical damping is _________Where G = displacement constant ; Nm/A, K = control constant ; Nm/rad and J = inertia constant ; kg-m<sup>2</sup>.
- 3. A d’arsonval galvanometer uses a lamp and scale arrangement. Its current sensitivity is 250 mm/µ if the resistance of the coil is 100 Ω. And the external resistance required for critical damping is 900 Ω (which is connected in the circuit), the voltage sensitivity is
- 4. Ayrton shunt is used in d’Arsonval galvanometers so as to limit the current in the galvanometer coil to its maximum permissible value. The relative value of current through the galvanometer coil and the shunt
- 5. A ballistic galvanometer should be designed with
- 6. In a flux meter
- 7. In an unshunted flux meter,the sensitivity is dependent upon
- 8. A vibration galvanometer is to be turned to a frequency of 50 Hz. The ratio of its control constant to inertia constant should be
- 9. A vibration galvanometer is tuned
- 10. A Duddell’s oscillograph can be used for frequencies
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