Answer:
Resistance = 5.14 Ohms
Explanation:
Given the following data;
Quantity of charge, Q = 2.8*10^5C
Time = 1hour to seconds = 60*60 = 3600 seconds
Voltage = 400V
First of all, we would find the current flowing through
Q = it
2.8*10^5 = I*3600
Current, I = 280000/3600
Current, I = 77.78 Amps
To find the resistance;
Ohm's law states that at constant temperature, the current flowing in an electrical circuit is directly proportional to the voltage applied across the two points and inversely proportional to the resistance in the electrical circuit.
Mathematically, Ohm's law is given by the formula;
Voltage = current * resistance
Resistance = voltage/current
Resistance = 400/77.78
Resistance = 5.14 Ohms