interest expense就是乘market interest rate吗？

问题如下：

At the beginning of 2013, company M issued 5-year bonds with the face value of $2,000,000. The market interest rate is 7%, every 31 December the bonds will pay 8% coupon. According to the effective interest rate method, the interest expense on 31 December 2013 is:

选项：

$145,740

$104,100

$166,560

解释：

A is correct.

N=5, I/Y=7, FV=2,000,000, PMT=160,000, → PV=2,082,004

According to the effective interest rate method, the interest expense = the carrying amount at the beginning of the year × the effective interest rate at issuance =2,082,004 × 7% =145,740