Which one of the following is used in pacemakers, cameras and electronic watches?
A. Li-ion battery
B. Leclanche cell
C. Galvanic cell
D. Mercurry button cell
Answer:D
Which one of the following is used in pacemakers, cameras and electronic watches?
A. Li-ion battery B. Leclanche cell C. Galvanic cell D. Mercurry button cell