The amperage reading for the electric heater, given that the electric heater has a resistance of 11.5 ohms and is operating at 230 V, is 20 A
How to calculate the amperage reading for the heater?
According to ohm's law, the voltage, resistance and current are related as follow:
Potential difference (V) = Current (I) × resistance (R)
With the above formula, we can calculate the amperage reading for the heater. This is shown below:
- Potential difference (V) = 230 V
- Resistance (R) = 11.5 ohms
- Amperage reading for electric heater (I) =?
Amperage reading for electric heater (I) = Potential difference / Resistance
= 230 / 11.5
= 20 A
Therefore, we can say that the amperage reading for the heater is 20 A