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When you increase voltage (V) then, to get the same total power (W), the current (I) must be decreased. This result comes from the Power Law:

Power = voltage x current

Ohms Law does not deal with power at all, it deals only with the relationship between voltage, resistance and current:

Voltage = resistance x current

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Q: Why in a circuit using power I equals Watts divided by Volts when you increase voltage the current will reduce so why does this differ from Ohms law when you increase voltage the current increases?
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Related questions

What will happen in a circuit if the voltage does not change but the resistance in the circuit increases?

If the resistance increases, while the voltage stays the same, current will decrease. Current = voltage divided by resistance


Should you increase voltage or resistance to increase flow in a circuit?

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Yes, if the resistance remains constant. Power is voltage times current, and current is voltage divided by resistance, so power is voltage squared divided by resistance. In essence, the power increases as the square of the voltage.


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Ohm's Law says Voltage = Current x Resistance With constant voltage, an increase in resistance decreases the current. Now the load can be added in two basic ways. If the load is added in series the resistance will increase. If you add load in parallel the resistance will decrease and the current will increase from the source.


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