A series of free GCSE/IGCSE Physics Notes and Lessons.
Energy Transfer by Components in Circuits
The following diagram gives the formula for energy, charge and current. Scroll down the page for more examples and solutions on how to use the formula.
In these lessons, we will
• Calculate the energy transferred by components in electrical circuits
E = Q × V
1. 4 coulombs of charge flows in the circuit with a p.d. of 15V. Calculate the total energy transferred.
2. 3 coulombs of charge flows in the circuit. Calculate the energy transfered in resistor A.
Energy transfer in a circuit
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