All field lines are either closed loops or lines that continue towards infinity. Field lines can cross each other. The direction of the magnetic field at a point is tangent to the field line that passes through that point. Magnetic field lines emerge from positive charges. If a field is created by a current, reversing the direction of the current results in reversing the direction of the field at all points. All field lines are perfect circles or straight lines. If field lines bunch up closer together in a region, this indicates that the magniturde of the magnetic field is stronger there. Magnetic fields appear only at locations where magnets are present. The direction of magnetic field lines indicate the direction in which a positive charge would move if placed in that region. The right hand rule can be used to determine the direction of the magnetic field created by a current in a straight wire.

Q: The magnetic field in a given region is uniform. Draw a diagram to represent it

A:

Q: Explain how a magnet can pick up an object even though the magnetic field cannot do work on the…

A: Work is defined as the transfer of energy that occurs when a force is applied to move an object over…

Q: Which of the following is a property associated with strong permanent magnets? Materials with this…

A: Permanent magnets are the magnets which don't loose their magnetism with time . Electromagnets are…

Q: Which of the following statements are true? a) Scientists have evidence that single isolated…

A: The objective of the question is to identify the true statements among the given options related to…

Q: What is the magnitude of the net magnetic field at point P? What is the magnitude of the electric…

A: The magnetic field of moving charges is

Q: The Millikan Oil Drop Experiment proved that... electrons have a positive charge. electric charge…

A: Millikan oil dropped experiment proved that charges are a simple multiple of a single integer which…

Q: 6. Two parallel wires carry currents in the opposite directions. One current is 15 amps into the…

A:

Q: Which of the following is equivalent to the units of a magnetic field?     A m/N     N A/m…

A: N/(Am)

Q: An electron travelling north enters a magnetic field directed south. Explain what you would expect…

A: The question is asking us to predict the behavior of an electron as it enters a magnetic field. The…

Q: Which of the following are true statements about magnetic field lines A small compass will point in…

A:

Q: What is the direction of the force on an electron with a velocity to the north in the earth's…

A:

Q: What is the magnitude of force on an electron traveling east at 1.53 x106 m/s within a 5 T magnetic…

A: The speed of an electron is, v=1.53×106 m/s The magnitude of the magnetic field is, B=5 T The charge…

Q: If you look directly at the North Pole end of a bar magnet , which way does it’s magnetic field…

A: Given: If you look directly at the North Pole end of a bar magnet , which way does it’s magnetic…

Q: magnetic Field stregth vs. Current 20 18 16 LINEAR 14 x-range: 1.8 - 5.4 A y = mx + b 12 m: 3.991 b:…

A: Magnetic field strength is plotted along y axis and the current is plotted along the x axis . The…

Q: Which of the following are accurate statements about permanent magnets and magnetic fields?…

A: Magnetic field: Magnetic field is the area near a magnet where a magnetic object or an electric…

Magnetic Force

A magnetic force arises when a charged particle or a current-carrying conductor is placed in a magnetic field. It is created because of the movement of the charged particles.