A laser pointer produces a beam with a power of 0.6 mW. It is supplied a power of 1.5 V battery. Calculate the amount of current produced by the given laser. A
Question
A laser pointer produces a beam with a power of 0.6 mW. It is supplied a power of 1.5 V battery. Calculate the amount of current produced by the given laser. A
Solution
To calculate the current, we can use Ohm's law, which states that the current (I) is equal to the power (P) divided by the voltage (V).
Given: Power (P) = 0.6 mW = 0.6 x 10^-3 W (converting mW to W) Voltage (V) = 1.5 V
We can substitute these values into the formula:
I = P / V I = 0.6 x 10^-3 W / 1.5 V
By performing the division, we find that the current (I) is approximately 0.0004 A, or 0.4 mA.
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