Question

where we use conventional current

Answer 1

heyy vickey ur answer.........

When we are first introduced to electricity we learn that current flows from positive to negative. When we learn some physics we are told that what flows in a wire is electrons and they go from negative to positive. Later still we find that the advanced textbooks assume conventionl current flow - positive to negative. Confusing, huh?

A lot depends on what you are talking about and what the audience are comfortable with. For much electrical theory it just doesn’t matter. In electronics, sometimes it does. For network analysis it is an arbitrary assignment.

Electrics:

Heaters don’t care which way the current flows.Magnetic rules assume conventional current.Electrolytics depend on the current direction but the charge carriers have either polarity so flow in opposite directions.

Electronics:

Transistor physics have electrons and holes as charge carriers. The ‘current direction’ depends on which is the majority carrier. (But the arrow on the symbol shows conventional flow).Vacuum tubes definitely need electron flow to explain them....

hope this will help u...............@kundan