why varistor is used / वैरिस्टर का उपयोग क्यों किया जाता है 

hello friends
aj ke video me hm dekhnge ki varistor kya hota h aur iska industry me kya use h aur iski workings kya and ye ek over voltage protection device h jo circuit.me lagya jata haur ye surge se bhi protection deta h aur isse judi sbhi important topic ko cover krenge ummed h video apko pasnd ayegi aur channel ko subscribe karenge
other topics solve
1. what is varistor
2. varistor working principle
3. varistor in hindi
4. uses of varistor
5. overvoltage protection equipment