how does an electric motor works
Answers
Heya Mate!!!!!!
Here is your answer
Answer:
As you can see in the attachment that i have given, there are two magnetic poles north and south, one rectangle coil ABCD ( imagine it as coil ), one axle, two split rings P and Q, two brushes X and Y, wire, one switch K and one battery. Now you have putted on the circuit. You will find that the current direction is same as the arrows drawn. So the current enters the coil from A and moves to B so line AB experiences a current flow. Now apply Fleming's Left Hand Rule. you will find that the motion of that line AB is downwards. Now imagine the current is passing from C to D. Similarly CD experiences a current flow and by applying the Fleming's left hand rule, you will get it will move upwards. You may see that AB is moving downwards and CD is moving upwards. So the coil ABCD is moving anti clock wise. You can see the endings of coil ( A and D ) are connected to the split rings ( see second image for clarification ). These rings are connected to the brushes but are not permanently fixed they are just attached in such a way so that the rings can easily rotate. So imagine the coil has half rotated, the gaps between the two split rings touches the brushes. Now the terminals change respectively and the current starts to flow from D to C to B to A. So the current direction is reversed. Now apply the left hand rule on DC where the current is flowing from D to C, you will get that it is now moving downwards and similarly the line BA is moving upwards. By this way, the coil ABCD rotates. The work of axle is to support the coil. If you have any doubts, you can ask me.
Explanation:
