Q. The hum in transformer is due to
Solution:
Electric hum around transformers is caused by stray magnetic fields causing the enclosure and accessories to vibrate. Magnetostriction is a second source of vibration, in which the core iron changes shape minutely when exposed to magnetic fields.
Related Questions
Q. A device used to detect heat radiation is known as:
View SolutionQ. The input impedance of a JFET is high because __—
View SolutionQ. Full form of SMPS IS :
View Solution
Get Question Bank
Strengthen Your Practice with our comprehensive question bank.
