Indicate true or false in each of the following statements:
1. A static magnetic field can do work on a current carrying wire when the current in the wire is perpendicular to the field.
2. The time required for a charged particle to complete one cycle of a circular path in a uniform magnetic field is independent of the velocity of the charged particle.
3. The magnetic field lines leave the north pole of a bar magnet and enter the south pole and are continuous inside the magnet.
4. A charged particle moving perpendicular to a uniform B field will move on a spiral path.
5.Two antiparallel currents repel each other.
Answers
1.True 2.True 3.true 4.false( circular path) 5.true
Pl check my answers
2. Ignoring relativistic mass, you are right. In the real world, mass is dependent on velocity.
Thank u
Your answers are mostly correct. However, there is a mistake in statement 2. The correct answer is false. The time required for a charged particle to complete one cycle of a circular path in a uniform magnetic field depends on the velocity of the charged particle.
Your answers are mostly correct, but there is one answer that needs to be revised:
4. The statement should be considered false. A charged particle moving perpendicular to a uniform magnetic field will move in a circular path, not a spiral path. This circular path is known as a "helix" shape because the particle's velocity vector will still be perpendicular to the magnetic field, but it will also have a perpendicular component due to the circular motion. This results in a helical trajectory.
So, the corrected answers would be:
1. True
2. True
3. True
4. False (not a spiral path, but a circular path)
5. True
Well done!