What is increased in a generator when coils are connected in parallel?

In a generator, when coils are connected in parallel, the current is increased. This configuration allows for multiple paths through which electricity can flow, effectively increasing the total output current of the generator.

Here's how it works: in a parallel setup, each coil operates independently and contributes to the overall output. The voltage across each coil remains the same, but because the coils share the load, the total current output can be much higher than that of a single coil operating alone. This principle is widely utilized in electrical systems to enhance current delivery while maintaining the same voltage level.

The other choices reflect aspects that do not increase in the same way with parallel connections. Voltage remains constant in this configuration, resistance typically decreases, and energy is a measure of power over time rather than a direct output of connecting coils in parallel. Thus, the focus on current in this scenario is a fundamental principle of generating electrical power efficiently.