Question

sal connected four light bulbs in a parallel circuit. if sal adds another light bulb, what is true about the current in each bulb?
a the current decreased when a fourth bulb was added.
b the current in the four bulbs is much less than the current in three bulbs.
c the current in each bulb remained the same even though another bulb was added.
d the current in the fourth bulb is less than the current in the other three bulbs.

Explanation:

In a parallel circuit, the voltage across each component (light bulb here) is equal to the source voltage. Using Ohm's Law \( I = \frac{V}{R} \), since \( V \) (voltage) and \( R \) (resistance of each bulb, assumed constant) don't change when adding a bulb in parallel, the current \( I \) through each bulb remains the same. So adding another bulb doesn't affect the current in existing bulbs.

Answer:

C. The current in each bulb remained the same even though another bulb was added.