hum experiment me jo small motor use karte hai kya uski speed change hoti hai battery ki power change hone se. please explain in hindi.
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har ek motor ka apna ek speed hota hai jise rpm (rounds per minute) kehte hai.Ye speed change nahi hoti. Har motor ki ek voltage ka range hota hai uske bahar hoga to short circuit ho jayega. Isliye agar speed change karna hai to jyada rpm ki motor leni padegi.
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