1. Apply: The light bulb is also a resistor. Place the light bulb in the circuit, then use Ohm’s law to find the resistance of the light bulb. What is it?
To find the resistance of the light bulb, we can use Ohm's Law which states that resistance (R) is equal to voltage (V) divided by current (I):
R = V / I
First, we need to measure the voltage across the light bulb using a multimeter. Let's say the voltage is 12 volts.
Next, we need to measure the current passing through the light bulb. Let's say the current is 0.5 amps.
Now we can plug these values into the formula to find the resistance of the light bulb:
R = 12 volts / 0.5 amps
R = 24 ohms
Therefore, the resistance of the light bulb is 24 ohms.