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Power, Current and charge
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Power, Current and charge
When an electricity charge flows through a resistor, the resistor gets hot.
Energy has been transformed from electrical energy into heat energy
Power (watts, W) = Energy transferred/transformed (Joules, J) Time Taken (Seconds, S)
- P=E T
Power (Watts, W) = Current (Amperes, A) x Potential difference (Volts, V)
- P = I x V
This heating effect occurs in all types of resistance not just resistors
- therefore the cables themselves and all electrical devices generate heat depending on their resistance
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- Mind Map on Power, Current and charge, created by ryansimon on 22/04/2013.
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- ryansimon
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