Final answer:
The resistance of the meter can be calculated using Ohm's Law (R = V/I) and the power formula (P = VI), by first finding the voltage with V = P/I and then finding R using the determined voltage.
Step-by-step explanation:
To calculate the resistance of the meter mentioned in the question, we use Ohm's Law, which states that the resistance (R) of a device is the voltage across it divided by the current flowing through it (R = V/I). The question does not provide the voltage directly but gives the power and current. We can use the power formula P = VI to find the voltage by rearranging it to V = P/I. Once we have the voltage, we can then find the resistance using Ohm's Law.
Let's substitute the given values into the power formula to find the voltage: V = 20,000 W / 0.0005 A. After calculating the voltage, we use the voltage to find the resistance: R = V / 0.0005 A. Keep in mind that the power should be in Watts and current should be in Amperes for the units to be compatible.
Note that the given power is in Kilowatts (Kw) and the current is in microamperes (µA), so we need to convert them into Watts (W) and Amperes (A) respectively before substituting them into the formula. This way, we ensure our final resistance value is in ohms (Ω).