A circular loop of diameter 40.0 cm is inserted into a magnetic field directed into the page. Initially, the magnetic field has a magnitude of 0.850 T. The rate of decrease of the magnetic field is -0.0400 T/s. Determine the value of induced emf between the points p and q on the loop. Use shortest length between p and q.

• A. 4.61 × 10^-3 V
• B. 4.00 × 10^-3 V
• C. 3.61 × 10^-3 V
• D. 1.61 × 10^-3 V

Answer: (D)