Question

# Mechanical advantage is equal to

A
2πR×2πr
B
2πR2πr
C
2πR2πr
D
None of these

Solution

## The correct option is C $$\displaystyle \frac{2\pi R}{2 \pi r}$$solution :mechanical advantage = $$\dfrac{distance- moved- by -the- effort }{distance -moved- by -the -load }$$hence, the ratio of lengths i.e. $$\dfrac{R}{r}$$hence , the correct opt: CPhysics

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