The wedge angle is the angle between the two inclined surfaces of the wedge. The larger the wedge angle, the greater the amount of force that can be applied to the wedge. This is because the larger the wedge angle, the greater the mechanical advantage of the wedge.

The mechanical advantage of a wedge is the ratio of the output force to the input force. The output force is the force that is applied to the object that is being lifted or moved by the wedge. The input force is the force that is applied to the wedge itself.

The mechanical advantage of a wedge can be calculated using the following formula:

```

MA = (2 * L) / W

```

where:

* MA is the mechanical advantage

* L is the length of the inclined surface of the wedge

* W is the width of the wedge

As can be seen from the formula, the mechanical advantage of a wedge is directly proportional to the length of the inclined surface and inversely proportional to the width of the wedge. This means that the longer the inclined surface and the narrower the wedge, the greater the mechanical advantage of the wedge.

The greater the mechanical advantage of a wedge, the greater the amount of force that can be applied to the wedge. This is because the mechanical advantage of a wedge tells us how many times greater the output force is than the input force.

Therefore, the greater the size of wedge angle, larger amount resulting force.