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CAPE Physics Unit 2 · 2017 · Paper 2 · Question 4(a)

With the aid of suitable diagrams, derive the formula for the equivalent resistance of two resistors, R₁ and R₂, connected in parallel.

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  1. 4(b)(i)State Kirchhoff's voltage law.[2 marks]
  2. 4(b)(ii)By applying Kirchhoff's current law to node X and Kirchhoff's voltage law to loops L₁ and L₂, calculate the current I₂ flowing through the 20 kΩ resistor in…[8 marks]

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