Answer:
40 Ω
Explanation:
The following data were obtained from the question:
Potential difference (V) = 20 V
Current (I) = 0.50 A
Resistance (R) =?
From ohm's law:
V = IR
Where:
V is the potential difference.
I is the current.
R is the resistance.
With the above formula, we can obtain the resistance of the resistor as follow:
Potential difference (V) = 20 V
Current (I) = 0.50 A
Resistance (R) =?
V = IR
20 = 0.5 × R
Divide both side by 0.5
R = 20/0.5
R = 40 Ω
Therefore, the resistance of the resistor is 40 Ω
