SSC MTS EXAM

Detailed explanation-1: -The primary difference between brushed and brushless motors is that brushed motors are mechanically driven and brushless are electronically driven. In brushed motors, the stator (stationary part) contains permanent magnets while the rotor (moving part) contains electromagnets.

Detailed explanation-2: -According to Consumer Reports, brushless motors are more energy-efficient than brushed, often running on battery power for up to 50 percent longer. Since brushless motors don’t contain brushes that lose energy to friction, they have a longer battery life than brushed tools. Many models can run for hours.

Detailed explanation-3: -2.22 shows, the rotor of a brushless DC motor is a permanent-magnet rotor and the stator is a coil. The difference from the DC motor (where the coil rotates) is the part that rotates. The principle of rotation, output characteristics, and other basic characteristics are virtually the same between them.

Detailed explanation-4: -There are two types of DC motors-brushed and brushless. They are both DC permanent magnet motors since they both use a segmented permanent magnet rotor. These motors are typically used for speed control applications.