What do you mean by the mechanical advantage of a lever?
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Solution
The factor by which a machine multiplies the force applied is called the mechanical advantage of that machine.
𝑀𝑒𝑐ℎ𝑎𝑛𝑖𝑐𝑎𝑙 𝐴𝑑𝑣𝑎𝑛𝑡𝑎𝑔𝑒 𝑜𝑓 𝑙𝑒𝑣𝑒𝑟 =LoadLEffortE =EffortarmFALoadarmFB