IGCSE Physics - Electrical Circuits All Answers Co
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IGCSE Physics - Electrical Circuits All Answers Correct 
1. Power is measured in... - Watts (W) 
2. Electromotive force (emf)... - The force that causes the motion of electrons due to a potential difference. 
3. Resistance... - Opposes the flow of current; high resistance means low current if voltage remains constant. 
4. Current in metals... - In metals, current is the flow of negatively charged electrons. 
5. Current is measured in... 
- Amperes (A) using an ammeter. 
6. Ammeter... - Sy...