Chapter SH, Problem 7.9APP

To determine

To calculate: Number of revolutions a coil each second.

Answer to Problem 7.9APP

Number of revolutions the coil makes in 1 second is $\underset{\_}{50}$ .

Explanation of Solution

Given:

Number of revolutions in two minutes = $\text{6000}$

Calculation:

  $\begin{array}{l}\text{1 minute = 60 seconds}\\ \text{2 minutes =}\left(60\times 2\right)=120\text{ seconds}\end{array}$

Number of revolutions the coil makes in 120 seconds = $\text{6000}$

Number of revolutions the coil makes in 1 second = $\frac{6000}{120}=50$

Conclusion:

Number of revolutions the coil makes in 1 second is $\underset{\_}{50}$ .