Answer:
a) The current to the coil in a DC motor must be reversed twice during each rotation because the coil will not rotate in the opposite direction until the current is reversed twice.
b) A commutator is a device that reverses the current
a) In a DC motor, why must the current to the coil be reversed twice during each rotation?
b) What device reverses the current?
b) What device reverses the current?
a) In a DC motor, why must the current to the coil be reversed twice during each rotation?
b) What device reverses the current?
b) What device reverses the current?