Q
Co-efficient of adhesion is________________-?
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A
A. High in case of d.c. traction than in the case of ac. traction
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B
B. Low in case of d.c. traction than in the case of ac. traction
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C
C. Equal in both ac. and d.c. traction
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D
D. Any of the above
Correct Answer:
B. B. Low in case of d.c. traction than in the case of ac. traction
