Which of the following concepts are not used in magnetic wind instruments?
A. Change in resistance due to cooling by magnetic wind
B. Displacement of membrane by magnetised oxygen
C. Difference in pressure difference between two gases having varying concentration of oxygen
D. By measuring temperature using thermometer
Answer:D
Which of the following concepts are not used in magnetic wind instruments?
A. Change in resistance due to cooling by magnetic wind B. Displacement of membrane by magnetised oxygen C. Difference in pressure difference between two gases having varying concentration of oxygen D. By measuring temperature using thermometer
Explanation: Temperature is not measured in magnetic wind instruments. The cooling effect of magnetic wind causes a change in resistance which is measured.