It really depends on the voltage. Ohm's law says that current is proportional to voltage divided by resistance.
I = V/R
This means that as voltage increases with a given fixed amount of power, current decreases. Indeed, a watt is a measurement of power calculated by multiplying current in amps by potential in volts.
Joule's equation of heating says that the power (P) lost to heat in a circuit is equal to current (I) squared, multiplied by resistance (R).
P = I^2R
Thus, increasing voltage reduces heat generated over a given conductor.
I = V/R
This means that as voltage increases with a given fixed amount of power, current decreases. Indeed, a watt is a measurement of power calculated by multiplying current in amps by potential in volts.
Joule's equation of heating says that the power (P) lost to heat in a circuit is equal to current (I) squared, multiplied by resistance (R).
P = I^2R
Thus, increasing voltage reduces heat generated over a given conductor.