5. Based on triboelectric series which material has the highest tendency to become positively charged?
A. glass
B. silk
C. rubber
D. wool
9. Which of the following pair has the strongest electrical force of attraction?
A Welcru and Lofku
C. Xatzki and Melgi
B. Zysmu and Melqi
D. Khamri and Xatzki
Answers & Comments
Answer:
Q5. LETTER A. Glass
Q9. LETTER C. Welcru and Lofku