Answer:
$20,000 premium is amortized at the end of the first year.
Explanation:
Straight line amortization:
premium amortized = Premium / number of years
                 = ($5,200,000 - $5,000,000) / 10 years
                 = $200,000 premium / 10 years
                 = $20,000
Therefore, $20,000 premium is amortized at the end of the first year.