When 62 kVp is increased by 30%, the result is approximately:

To determine the result of increasing 62 kVp by 30%, you first calculate 30% of 62 and then add that amount back to the original value.

First, calculate 30% of 62:

30% of 62 is calculated as:

( 0.30 \times 62 = 18.6 )

Next, add this to the original kVp:

( 62 + 18.6 = 80.6 )

When rounding this value, approximately 80 kVp is derived. Therefore, the closest choice that reflects this result is 80 kVp. This value is significant in radiography, as changes in kVp can affect the quality of the X-ray image, including contrast and exposure, which is essential knowledge for an X-ray machine operator.