IB Physics Topic 5 (Electricity and Magnetism) HL Paper 1 Questions

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IB Physics Past Problem Solving Playlist

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[rudefrog]

7) is wrong, the answer is D since the internal resistance has to be with the battery and our variable resistance is across the battery, making the resistors in parallel. This means that your equivalence resistance is going to be a total of 1 ohm & like someone pointed out, 144/4 does not equal 18.

[hectorgrand]

Hi, thankyou so much for the video, I'm confused about Problem 14, as I thought with charges, potential was positive, so it would be D

[weeborghini]

u chinese as well? which uni did u end up going to?

[michaeldavidov]

how old is are you, ? you sound older than me smh