Kirchhoff's laws
What Kirchhoff's laws means in Physics A-Level, as defined for OCR.
Definitions of Kirchhoff's laws
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Reference: OCR
At any junction the sum of currents entering equals the sum leaving, and around any closed loop the algebraic sum of potential differences is zero.
These are used to check current and voltage distributions.
Topics that use Kirchhoff's laws
- Series and parallel circuits (OCR A-Level)
Related terms
- Circuit analysis
- Conservation of charge
- Conservation of energy
- Conservation of energy in electrical circuits
- Ohm’s law
- Series and parallel combinations
- Sign conventions in loop analysis
- Simultaneous equations in circuit analysis
Using Kirchhoff's laws in the exam
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