Which one of the following is used in cell phone, dry cell in flashlight?
A. Zn – Cu battery
B. Li – ion battery
C. Ag – Cu battery
D. Na, NaCI battery
Answer:B
Which one of the following is used in cell phone, dry cell in flashlight?
A. Zn – Cu battery B. Li – ion battery C. Ag – Cu battery D. Na, NaCI battery