Question

The correct relationship between the mechanical advantage $(M.A.)$, the velocity ratio $(V.R.)$ and the efficiency $\left(\eta \right)$ is :

• A. $M.A.=\eta \times V.R.$
• B. $V.R.=\eta \times M.A.$
• C. $\eta =M.A.\times V.R.$
• D. none of these

Answer 1

The correct option is A $M.A.=\eta \times V.R.$

$efficiency$ ($\eta$) $=$ $\frac{mechanicaladvantage(M.A)}{velocityratio(V.R)}$
so,
$M.A=$ $\eta$ $\times$ $V.R$