A 16-year-old athlete wears a heart rate monitor during a workout. What is the application of electromagnetic induction in this device?
Q1. A 16-year-old athlete wears a heart rate monitor during a workout. What is the application of electromagnetic induction in this device?
Answer: Measuring EMF
Explanation: The heart rate monitor uses electromagnetic induction to measure the EMF generated by the movement of the athlete's heart, which is then used to calculate their heart rate. The other options do not describe the application correctly.