1.Why is wheel and axle a simple machine?

2.What is meant by effort is multiplied?

The wheel and axle is a type of simple machine used to make tasks easier in terms of manipulating force by applying the concept of mechanical advantage.Due to the size difference in the radius of the wheel and axle, this means that the distance the two parts rotate through in the same amount of time is different.

powerful computers now, not then

the higher the current the higher the mag field around it the higher the influence on the compass