A light bulb with a resistance of 100 ohms connected to a 110-volt supply would draw how much current?

A light bulb with a resistance of 100 ohms connected to a 110-volt supply would draw how much current?

• A. 0.91 amperes
• B. 1.1 amperes
• C. 11 amperes
• D. 110 amperes

Answer: (B)

Current is found using Ohm’s law: current = voltage divided by resistance. With 110 volts across a 100-ohm bulb, the current is I = 110 V / 100 Ω = 1.1 amperes. So the light bulb would draw about 1.1 A.

Current is found using Ohm’s law: current = voltage divided by resistance. With 110 volts across a 100-ohm bulb, the current is I = 110 V / 100 Ω = 1.1 amperes. So the light bulb would draw about 1.1 A.