there is current of 0.65a through a light bulb in a 120v circuit what is the resistance of this light bulb?
R=U/I=120/0.65
To find the resistance of a light bulb, you can use Ohm's Law, which states that resistance (R) is equal to voltage (V) divided by current (I).
Given:
Voltage (V) = 120V
Current (I) = 0.65A
Using the formula for resistance, we can rearrange it to solve for resistance:
R = V / I
Substituting the given values:
R = 120V / 0.65A
To perform the calculation, divide 120V by 0.65A using either a calculator or long division:
R ≈ 184.62Ω (rounded to two decimal places)
Therefore, the resistance of the light bulb is approximately 184.62 ohms.