You can't make a motor using direct current and electromagnet that doesn't require switches. Why not?
You can't make a motor using direct current and electromagnet that doesn't require switches. Why not?
Homework Answers
DC motor does not have any switches and because the current is
direct so it doesn't oscillate.
The explanation to this is in the working of DC motor.
Since, there are no switches in DC motor, commutators and brushes
can be used as switches. There is no direction associated with DC
so that is why brushes are required to provide break periodically
and reverse the direction of the current after the exact half
rotation of the rotor thus, maintaining the direction of the
torque. So, a dc motor works without switches.
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You can't make a motor using direct current and electromagnet
that doesn't require switches. Why not?
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