Analysing series circuits
Lesson 6 / 9
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I can use circuit rules and the equation I = V ÷ R to analyse series circuits.
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Current can be calculated using the equation: current = p.d. ÷ resistance (I = V ÷ R).
The rules of current and p.d. for a series circuit can be applied to find some missing values of current and p.d.
The equation I = V ÷ R can be rearranged so that either V or R is the subject of the equation.
If any two values in the equation I = V ÷ R are known, the third can be calculated.
If only one value in the equation I = V ÷ R is known, rules for current or p.d. need to be applied to find a second.
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