The main difference between DCC and DC in N scale model trains is the way that the trains are controlled.

DC stands for direct current. In a DC system, the voltage on the track is constant, and the locomotives are controlled by varying the amount of current that flows through their motors. This is done by using a power supply and a controller. The controller allows you to increase or decrease the voltage to the track, which controls the speed of the locomotives.

DCC stands for digital command control. In a DCC system, the voltage on the track is constantly changing, and the locomotives are controlled by sending digital signals to them. This is done using a DCC decoder, which is installed in each locomotive. The decoder interprets the digital signals and controls the motor and other functions of the locomotive.

DCC offers a number of advantages over DC, including:

• Independent control of multiple locomotives: With DCC, you can control multiple locomotives independently on the same track. This is not possible with DC, where all locomotives on the same section of track will run at the same speed.
• Programming: DCC decoders can be programmed to control a variety of locomotive functions, such as sound, lighting, and direction of travel. This is not possible with DC.
• Realism: DCC decoders can be programmed to provide a more realistic simulation of locomotive operation, such as slow start and stop and inertia.

However, DCC is also more expensive than DC. You will need to purchase a DCC decoder for each locomotive, and you will also need a DCC system.

If you are new to model railways, I recommend starting with a DC system. DC systems are less expensive and easier to set up. However, if you are serious about model railways, you may want to consider switching to DCC in the future.

Which is better for N scale model trains?

Both DCC and DC have their own advantages and disadvantages. Ultimately, the best choice for you will depend on your budget and your modeling goals.

If you are on a tight budget and you do not need to control multiple locomotives independently, then DC is a good choice. However, if you are serious about model railroading and you want to be able to control multiple locomotives independently and program their functions, then DCC is the better choice.