Question

The resistance of the filament of an electric bulb is 1200 ohms. How much electric current will the bulb draw from an electric source of 220 volts?

• A. 12 ampere
• B. 2.8 ampere
• C. 2 ampere
• D. 0.18 ampere \bigskip

Hint:

Ohm's Law is used to calculate the current, voltage, or resistance in an electric circuit.

Answer 1

The Correct Option is D

We can use Ohm's Law: \( I = \frac{V}{R} \), where \( V = 220 \, \text{volts} \) and \( R = 1200 \, \text{ohms} \). Substituting the values: \( I = \frac{220}{1200} \approx 0.18 \, \text{ampere} \).