An amplitude modulated carrier wave is viewed on an oscilloscope screen. The maximum amplitude is 50V and minimum amplitude is 8V. Calculate the percentage modulation index. What is the amplitude of unmodulated carrier wave?

The modulation index (m) for amplitude modulation is calculated using the formula:  

\[
m = \frac{A_{\text{max}} - A_{\text{min}}}{A_{\text{max}} + A_{\text{min}}}
\]  

Here, \(A_{\text{max}}\) is the maximum amplitude, and \(A_{\text{min}}\) is the minimum __________ ________ ___ __________ ________ ___ _____.
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