Answer:
0.25 A, 1.00 A, 2.50 A
Explanation:
Ohm's law is summarized by the equation:
[tex]V=RI[/tex]
where
V is the voltage
R is the resistance
I is the current
Re-arranging it, we have an expression for the current:
[tex]I=\frac{V}{R}[/tex]
Solving for the different cases, we have:
voltage = 5 V, resistance = 20 Ω: [tex]I=\frac{5}{20}=0.25 A[/tex]
voltage = 20 V, resistance = 20 Ω: [tex]I=\frac{20}{20}=1.00 A[/tex]
voltage = 50 V, resistance = 20 Ω: [tex]I=\frac{50}{20}=2.50 A[/tex]
