Electric Circuits - Tip 1: Charges carry Energy ( IB and A-level Physics )

Tip No1: Consider charges circulating in a circuit as carriers of energy.

Getting grips with this concept will allow you to have a more intuitive approach in solving circuit problems.

This video is the first of a series of 5 tips that will help you understand electric circuits. It is aimed at IB Physics, A-level physics and AP Physics students.

Check the other tips for a more complete picture :

Tip No2: When relevant, think in potentials at a point instead of voltages (voltage = potential difference).

Tip No3: Analyse the circuit first by drawing arrows for potential differences and currents.

Tip No4: Take advantage of Kirschhoff laws.

Tip No5: Calculate equivalent resistance of two resistors in parallel in seconds!

I am also uploading some exam preparation exercises that will give you a very practical methodology to solve circuits with a minimum of effort!

Exercise 1: for circuits with a single battery.

Exercise 2: for circuits with multiple batteries.

Have fun and good luck!

Edouard

Edouard Reny, Ph.D. in materials science, is a private physics tutor for international IB, A-level and AP students.
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[karthikchowdary]

sir, the energy the truck is carrying is due to the work done by the battery, then moment of the electron towards the resisitor should effect the potential enegry right??

[imadmimeche]

if there is just a wire between the end points of the battery, how come the truck will have 0 joules when it arrives at the other end of the battery ?

[shadmaabbas]

A wire ( that is conductor) offers resistance to the flow of electron (as electron collides against postive nucleus ) then why do we need to add an external resistance which is represented by ZIG ZAG when wire is already giving resistance ??
Sir plz clear this doubt

[htheh]

I just can’t understand what really is voltage, how is it created, like what makes voltage!
It has been months, yet no result.