Resistors in Series and Parallel - GCSE Physics

This video explains resistors in electrical circuits in more detail. When resistors are added in series their total resistance increases, while in parallel the total resistance decreases. In series

In a series circuit, the total resistance is simply the sum of the individual resistances and with each resistor that's added in series, the total resistance increases.
The series resistor equation is: RT = R1 + R2 + R3

In a parallel circuit, the total resistance is slightly more complicated. The more resistors that are added in parallel, the total resistance of the circuit decreases. The inverse of the total resistance is equal to the sum of the inverses of the other resistances.
The parallel resistor equation is: 1/RT = 1/R1 + 1/R2 + 1/R3

Thanks for watching,

Lewis

Relevant for GCSE Physics 9-1 in the following exam boards:
AQA (including Trilogy)
Edexcel
CCEA
OCR A
OCR B
WJEC
CIE (Cambridge International Examinations) IGCSE
Edexcel International IGCSE

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[lass]

Very nice illustration. I just couldnt get around how resistor in parallel decrease.

[MrA-xokw]

Great video, always wondered why resistance worked in this way.

[sea]

This honestly helped so much and I am an a level student, thank you !

[Bugra]

Your new intro and ending have added a flavour to the rest of the video. I like it.
By the way, I love these why questions?? It improves understanding...which is far more crucial than just knowing the 'how'.

[allynafejamu]

great video everything makes sense now thank you

[tiger-tet]

hello sir, can you please upload a nuclear physics playlist with videos on that for year 13 aqa
many thanks