Ohms Law
If the voltage stays the same, the higher the resistance, the lower the current.
V = I X R (e.g. 3 Amps X 2 Ohms = 6 Volts)
R = V ÷ I (e.g. 6 Volts ÷ 3 Amps = 2 ohms)
I = V ÷ R (e.g. 6 Volts ÷ 2 ohms = 3 Amps)
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Voltage = Resistance x Current V= R x I |
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Resistance |
X |
I Current |
= |
Voltage |
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5 ohms |
X |
2 Amp |
= |
10 Volts |
|
3 ohms |
X |
5 Amps |
= |
15 Volts |
|
12 ohms |
X |
1 Amps |
= |
12 Volts |
|
X |
4 Amps |
= |
920 Volts |
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1 k ohms |
X |
1 m Amp |
= |
1 Volt |
Resistance = Voltage ÷ Current R = V/I |
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Voltage |
÷ |
Current |
= |
Resistance |
|
10 Volts |
÷ |
2 Amps |
= |
5 ohms |
|
15 Volts |
÷ |
5 Amps |
= |
3 ohms |
|
12 Volts |
÷ |
1 Amp |
= |
12 ohms |
|
920 Volts |
÷ |
4 Amps |
= |
230 ohms |
|
1 Volt |
÷ |
1 mA |
= |
1 k ohms |
Current = Voltage ÷ Resistance I = V/R |
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Voltage |
÷ |
Resistance |
= |
Current |
|
10 Volts |
÷ |
5 ohms |
= |
2 Amps |
|
15 Volts |
÷ |
3 ohms |
= |
5 Amps |
|
15 Volts |
÷ |
5 ohms |
= |
3 Amps |
|
12 Volts |
÷ |
12 ohms |
= |
1 Amp |
|
920 Volts |
÷ |
230 ohms |
= |
4 Amps |
|
1 Volt |
÷ |
1 k ohms |
= |
1 mA |