**Explanation:**

When the armature and field connections of a DC series generator are reversed, the generator will stop. This is because the reversed connections will cause the current flowing through the armature to oppose the magnetic field produced by the field coils.

**Reasoning:**

To understand why the generator stops, we need to consider the operation of a DC series generator. In a DC series generator, the armature is connected in series with the field coils. When the generator is running, the armature carries the load current and generates a magnetic field that interacts with the magnetic field produced by the field coils. This interaction generates the electromotive force (EMF) in the armature, which is then used to power external loads.

**Effect of Reversed Connections:**

When the armature and field connections are reversed, the current flowing through the armature will flow in the opposite direction. As a result, the magnetic field produced by the armature will also be in the opposite direction. This reversed magnetic field will now oppose the magnetic field produced by the field coils.

**Effect on EMF:**

When the magnetic fields oppose each other, the overall magnetic field strength is reduced. This reduction in magnetic field strength leads to a decrease in the generated EMF. As the generated EMF decreases, the generator will not be able to supply the required voltage to power the load.

**Effect on Generator Operation:**

Due to the reduced EMF, the generator will not be able to overcome the load resistance and produce the required current. As a result, the generator will stop and the load will not be powered. The reversal of the armature and field connections essentially disrupts the generation of the magnetic field and the production of the required EMF, resulting in the generator coming to a stop.

**Conclusion:**

In summary, when the armature and field connections of a DC series generator are reversed, the generator will stop. This is because the reversed connections lead to a reduction in the magnetic field strength and the generated EMF, which prevents the generator from supplying the required voltage and current to power the load.