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Foundation November 2018 Paper 2 Q13

EduqasFoundationCurrent spec4 marksSubstitution

13. The table shows some facts about electricity.

FactFormula
Power = Voltage x Current\(P = VI\)
Voltage = Current x Resistance\(V = IR\)
Charge = Current x Time\(Q = It\)
Energy = Voltage x Charge\(E = VQ\)
(a) Calculate \(V\) when \(I\) = 2·5 and \(R\) = 0·7. [1]
(b) Calculate \(E\) when the Voltage is 240 and the Charge is 12. [1]
(c) Calculate the Time when the Charge is 75 and the Current is 12·5. [2]