The minimum change on any object cannot less than _____?

The minimum change on any object cannot less than _____?

کسی بھی شے میں کم سے کم تبدیلی _____ سے کم نہیں ہوسکتی ہے؟
Explanation

Charge is quantized and exists in discrete amounts.

The smallest possible charge is that of a single electron or proton, which is 1.6 × 10−¹⁹C.