Electricity: Kirchhoff's Second Law | A-level Physics | OCR, AQA, Edexcel

Electricity: Kirchhoff's Second Law in a Snap!

SnapRevise is the UK’s leading A-level and GCSE revision & exam preparation resource offering comprehensive video courses created by A* tutors. Our courses are designed around the OCR, AQA, SNAB, Edexcel B, WJEC, CIE and IAL exam boards, concisely covering all the important concepts required by each specification. In addition to all the content videos, our courses include hundreds of exam question videos, where we show you how to tackle questions and walk you through step by step how to score full marks.

Sign up today and together, let’s make A-level Physics a walk in the park!

[infinitetoxic]

finally a simple explanation, don't people know there's dummies out there

[abdulaleemgaad]

Such a wonderful explanation.Very helpful, Thanks alot..keep uploading.

[James-gfes]

You have forgotten the point of the last video. The solutions to the problems in this video are only correct if the cell has zero internal resistance. The correct expansion of Kirchhoffs's second law is sum(EMF) = lost volts + terminal voltage where the terminal voltage is what is left for the remaining components of the circuit e.g. bulb and resistor. We cannot solve the problem you posed unless you tell us there is zero internal resistance or provide more information so we can calculate the lost volts.