Question

A 24-V battery is powering a light bulb with a resistance of 3.0 ohms. What is the current flowing through the bulb? A) 7.20 A B) 8.0 A C) 12.0 A D) 72.0 A

Answer 1

According to Ohm's law for a portion of the circuit we have:

U=RI=>I=U/R=24/3=8 A

The correct answer is  B

Answer 2

The current flowing through the bulb having a resistance of 3 ohms is 8 A.

The correct answer to the question is Option B. 8 A

From the question given above, the following data were obtained:

Voltage (V) = 24 V

Resistance (R) = 3.0 ohms.

Current (I) =?

The current flowing through the bulb can be obtained by using the ohm's law equation as illustrated below:

V = IR

24 = I × 3

Divide both side by 3

I = 24 / 3

I = 8 A

Therefore, the current flowing through the bulb is 8 A.

The correct answer to the question is Option B. 8 A

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