| Electronics > Beginners |
| Question about voltage |
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| DoorVb:
The formula for voltage is V(volt) = J(joule) / C(coulomb) Does this mean that if I have a resistor that is dropping one volt, every coulomb of charge that passes trough it generates one joule of heat? Or am I getting the formula wrong? Any help is appreciated, :) Van Beveren |
| Paul Rose:
Sounds right to me. I used to thinking of it in terms of power and current. P = I * V 1 Ampere dropping 1 Volt = 1 Watt of power That 1 Ampere is just 1 Coulomb of charge per second. And that 1 watt is just 1 Joule per second. Substitute power with charge per time, substitute current with charge per second. Same story. |
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