What is the role of a commutator in a DC motor?

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To convert AC to DC
To reverse the direction of current
To increase voltage
To decrease resistance

Questions & Step-by-step Solutions

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Q: What is the role of a commutator in a DC motor?

Solution: The commutator in a DC motor reverses the direction of current in the coil every half turn, ensuring continuous rotation in one direction.

Steps: 6

Step 1: Understand that a DC motor has a coil of wire that spins when electricity flows through it.
Step 2: Know that the coil needs to keep spinning in the same direction for the motor to work properly.
Step 3: Realize that as the coil turns, the direction of the current in the coil would naturally change, which could stop the spinning.
Step 4: Learn that the commutator is a part of the motor that helps solve this problem.
Step 5: The commutator switches the direction of the current in the coil every half turn.
Step 6: This switching keeps the coil spinning in the same direction, allowing the motor to run continuously.

What is the role of a commutator in a DC motor?

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