9.1b Current in Conductors (Drift Velocity) | AS Electricity | Cambridge A Level Physics

[@nashitakauser5766]

the derivation of drift velocity is not included in 2022 syllabus anymore

[@riotza7597]

how do you know?

[@nashitakauser5766]

@@riotza7597 its in the syllabus

[@riotza7597]

@@nashitakauser5766 cause I don't see it under the changes unless I'm blind

[@nashitakauser5766]

@@riotza7597 sorry its actually written in the book, pg 159.

[@riotza7597]

@@nashitakauser5766 even better. Any other changes that are in the book?

[@romanuslukas8346]

How is it that the flow of electrons direction is opposite to that of the conventional current, is current not the flow of chargers which are carried by charge carriers and charge carriers can be ELECTRONS ,ions or protons. Please am I overthinking or am I just confused? Whats going on there ?

[@Kevindurant8292]

Conventional current is defined as the flow of positive charge through a circuit. However, in metals, the charge carriers are actually free electrons, which are negatively charged.

[@amazkhawar3657]

4:52

[@kademviren]

since Nq=nV, shouldnt it be nV/t instead of nVe/t

[@1okII]

current is equal to Ne/t only N is being replaced with nV

[@freya1989]

that V is the volume not the velocity

[@a.meforyou]

What is the d in dL/dt?

[@danielxoxo.]

d is just there to show rate of change, just simply use it as v=L/t.

[@abdurrahmanshahid7626]

I thinks it because of differentiation but i don't think u need to know that