Question

How can you increase the mechanical advantage of a lever?

Answer 1

Mechanical advantage of the lever is equal to the ratio of effort arm to the load arm.

𝑀𝑒𝑐ℎ𝑎𝑛𝑖𝑐𝑎𝑙 𝑎𝑑𝑣𝑎𝑛𝑡𝑎𝑔𝑒 𝑜𝑓 𝑙𝑒𝑣𝑒𝑟
$=\frac{Load\left(L\right)}{Effort\left(E\right)}$ $=\frac{Effortarm}{Loadarm}$

It can be increased by increasing effort arm or by decreasing load arm.