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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