P1a revision

This is a revision quiz for Edexcel GCSE Science Module P1a Producing Electricity and You're in Charge.
What W is the unit of power?. What R is an Ohm a measure of?. What N is the charge on an electron?. What P is the time taken to make up the money invested for energy saving?. What C is represented by the letter I?. What V is calculated by I x R?. What E is calculated by useful energy out /total energy in x 100%?. What is the L in LDR?. What H does a thermistor react to?. What D happens to resistance in an LDR as the light level increases?. What L can be increased to increase the resistance of a wire?. What C describes the graph of resistance in a filament bulb?. What P is the relationship between voltage and current in a conductor?. What is the R in a RCCB?. What F protects electrical appliances by melting at high currents?. What E protects the user of an appliance from electric shock?. What B is the colour of the neutral wire in a plug?. What G is one of the colours of the earth wire?. What I is a poor conductor of electricity?. What J is the unit of energy?.

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