How you can determine how much power a circuit will generate if you know the voltage and resistance but not the current.
Question:
Answers
Nana znz znz znz znz znz z
In other to know the amount of circuit generated while the voltage and resistance has been known. The formula V=IR, I=V/R is applied
Power can be found using the equation: power = (voltage)2 / resistance.
The general formula for power dissipation is:
Power = Current x Voltage
However, if you only know the voltage and the resistance, you can calculate the current using Ohm's Law, which is usually given as:
Voltage = Current x Resistance
However, you can rearrange this to give:
Current = Voltage/Resistance
You can then substitute this into the expression for power dissipation to yield an equation that gives an expression for power in terms of only voltage and resistance:
Power = / Resistance
The equation would be P=V^2/R
The general formula for power dissipation is:
Power = Current x Voltage
However, if you only know the voltage and the resistance, you can calculate the current using Ohm's Law, which is usually given as:
Voltage = Current x Resistance
However, you can rearrange this to give:
Current = Voltage/Resistance
You can then substitute this into the expression for power dissipation to yield an equation that gives an expression for power in terms of only voltage and resistance:
Power = [tex]Voltage^{2}[/tex] / Resistance