Q & A

Q & A

by MD MAHFUJUL ISLAM -
Number of replies: 4

Discuss the similarities and differences between the electrical force on a charge and the magnetic force on a charge.

*How could you determine which pole of an electromagnet is north and which pole is south?

In reply to MD MAHFUJUL ISLAM

Re: Q & A

by Nadim Hossian -
1.Electric forces can be produced by either stationary or moving electric charges, whereas magnetic forces can be produces only by moving charges.
Magnetic force on a moving charge is always normal to the direction of the movement and the magnetic field whereas the force by an electric field on a moving charge is always parallel to the electric field and does not depend on the direction of movement.
2.Without using a compass, there is a simple way of finding which is the north pole or south pole of an electromagnet. Turn the electromagnet so that the end faces your eye. If the electricity travels clockwise around the electromagnet then the end you are looking at is the south pole.
In reply to MD MAHFUJUL ISLAM

Re: Q & A

by Md. Sazzad Hossain -
1.Electric forces can be produced by either stationary or moving electric charges, whereas magnetic forces can be produces only by moving charges.
Magnetic force on a moving charge is always normal to the direction of the movement and the magnetic field whereas the force by an electric field on a moving charge is always parallel to the electric field and does not depend on the direction of movement.
2.Without using a compass, there is a simple way of finding which is the north pole or south pole of an electromagnet. Turn the electromagnet so that the end faces your eye. If the electricity travels clockwise around the electromagnet then the end you are looking at is the south pole.
In reply to MD MAHFUJUL ISLAM

Re: Q & A

by Md. Amirul Islam -
1Both electric charges and magnetic poles are of two types, the force acting between them is similar. Like poles repel each other and unlike poles attract each other. The lines of forces in magnetism and static electricity initiate from one pole or charge and end into the other..
2.2.Without using a compass, there is a simple way of finding which is the north pole or south pole of an electromagnet. Turn the electromagnet so that the end faces your eye. If the electricity travels clockwise around the electromagnet then the end you are looking at is the south pole.
In reply to MD MAHFUJUL ISLAM

Re: Q & A

by Nazmul Islam -
1.Electric forces can be produced by either stationary or moving electric charges, whereas magnetic forces can be produces only by moving charges.
Magnetic force on a moving charge is always normal to the direction of the movement and the magnetic field whereas the force by an electric field on a moving charge is always parallel to the electric field and does not depend on the direction of movement.
2.Without using a compass, there is a simple way of finding which is the north pole or south pole of an electromagnet. Turn the electromagnet so that the end faces your eye. If the electricity travels clockwise around the electromagnet then the end you are looking at is the south pole.