Final answer:
To produce 30 milliampere-seconds (mAs) with a duration of 0.05 seconds, you would need a current of 600 milliamperes (mA).
Step-by-step explanation:
If a duration of 0.05 seconds was selected for a particular exposure, and we need to produce 30 milliampere-seconds (mAs), we can calculate the necessary milliamperage to achieve this. The formula to calculate milliampere-seconds is:
milliampere-seconds (mAs) = current in milliamperes (mA) × time in seconds (s)
To find the current in milliamperes, we rearrange the formula:
current (mA) = milliampere-seconds (mAs) / time (s)
By substituting the given values, we get:
current (mA) = 30 mAs / 0.05 s =
600 mA
Therefore, the required milliamperage to produce 30 mAs with a duration of 0.05 seconds is 600 milliamperes.