Final answer:
To find the average current produced by the solar cells of a pocket calculator, we use the formula average current = total charge / total time. We can then convert the result to milliamperes (mA). In this case, the average current is 1100 mA.
Step-by-step explanation:
In order to find the average current, we can use the formula:
Average current = total charge / total time
Given that 2.75 C of charge passes through the calculator in 2.5 hours, we can plug in these values:
Average current = 2.75 C / 2.5 h
Simplifying, we get:
Average current = 1.1 C/h
To convert this to milliamperes (mA), we can multiply the value by 1000 since 1 A = 1000 mA:
Average current = 1.1 C/h * 1000 mA/A
Simplifying, the average current produced by the solar cells of the pocket calculator is 1100 mA.