Question

Why we always say unit positive charge but not unit negative charge in the definition of electric field?​

Answer 1

Answer:

We take positive charge as a test charge because positive charge is higher potential and negative charge is lower potential. Therefore, influence of positive charge on other charges is greater than negative charges. We can also take negative charge but the effect will be lower.

Explanation:

ur welcome

Answer 2

Answer:

when electricity was first discovered, electrons had not yet to make their appearance. May be if electrons were first found out, we could have as well as called them positive.

Explanation:

first charged used / imagined to be higher potential for experiments were termed positive and the definition stuck