Can a brushed DC motor run on AC?

Yes, absolutely. In fact, in a brushed permanent magnet motor, no conversion needs to be done. Just spin the shaft and it generates DC voltage/current.

What happens when AC is given to DC motor?

When AC supply is given to DC series motor: An AC supply will exert unidirectional torque because the direction of armature current and field current reverses at the same time and the direction of rotation will as it is.

Can a DC shunt motor be operated on AC supply?

The Shunt winding has a large number of turns so that it has appreciable inductance. When A.C is applied to a shunt motor, the large inductive reactance of shunt winding will reduce the field current too much. Consequently, Shunt motor will not usually run on A.C Supply.

Can a DC motor run on AC alternatively can a AC motor run on DC?

We already know that in a DC Series motor the field winding has very less resistance than a DC Shunt Motor as the field is connected in series with the Armature Winding. So if we give AC supply on a DC Series Motor it will run perfectly. In fact, DC Series can run on both AC and DC supply.

Which part will surely tell that given motor is DC motor and not an AC type?

Commutator
Commutator will surely tell that given motor is DC motor and not an AC type. 3.

Which is more efficient AC or DC motor?

AC motors are generally considered to be more powerful than DC motors because they can generate higher torque by using a more powerful current. However, DC motors are typically more efficient and make better use of their input energy.

Can an AC motor run on DC supply?

(1) AC motor cannot run on DC Supply because of most of AC motor like Single-Phase Induction Motors, Three Phase Induction Motors, Synchronous Motors need alternating flux, not static flux. As we know that only AC can produce alternating flux.

What is the difference between AC and brushed DC motors?

Brushed DC motors depend on a mechanical system to transfer current, while AC and brushless DC gear motors use an electronic mechanism to control current. The brushed motors have a wound armature attached to the center with a permanent magnet bonded to a steel ring surrounding the rotor.

Can a DC shunt motor run on AC supply?

For the change the rotation of the DC Shunt Motor we must interchange the terminals of anyone either armature terminal or field terminal. So you can say that a DC Shunt motor can run on AC Supply. As the motor is DC so the field and armature winding made for DC supply.

Why does a DC motor have more resistance than AC motor?

As the motor is DC so the field and armature winding made for DC supply. The winding which is made for DC always has more resistance than the winding which is made for AC. So when we give AC supply self-inductance will be produced in the winding which opposes the current which further decreases the production of flux.