Given V = 50 V and R = 10 Ω, what is the current?

Given V = 50 V and R = 10 Ω, what is the current?

• A. 3 A
• B. 4 A
• C. 5 A
• D. 6 A

Answer: (C)

Ohm's law says current through a component equals the voltage across it divided by its resistance. So with 50 volts and 10 ohms, the current is I = 50 V / 10 Ω = 5 amperes. This matches the idea that the same voltage across a fixed resistance drives a specific current: higher voltage gives more current, and higher resistance gives less. If you wanted 3 A, you’d need 30 V; for 4 A, 40 V; and for 6 A, 60 V.

Ohm's law says current through a component equals the voltage across it divided by its resistance. So with 50 volts and 10 ohms, the current is I = 50 V / 10 Ω = 5 amperes. This matches the idea that the same voltage across a fixed resistance drives a specific current: higher voltage gives more current, and higher resistance gives less. If you wanted 3 A, you’d need 30 V; for 4 A, 40 V; and for 6 A, 60 V.