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Choose the best description of a magnetic field line AMagnetic field lines always point north BA magnetic field line shows the direction a compass needle would point CMagnetic field lines?
Wiki User
∙ 11y ago
From that list, I'll have to go with 'B'.
Wiki User
∙ 11y ago
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How can you reverse the direction of the magnetic field in a wire produced by an electric current?
You can reverse the direction of the magnetic field by reversing the direction of the electrical current.
What is the difference between Transverse Electrical mode and Transverse Electrical Magnetic mode?
Transverse modes are classified into different types:TE modes (Transverse Electric) no electric field in the direction of propagation.TM modes (Transverse Magnetic) no magnetic field in the direction of propagation.TEM modes (Transverse Electromagnetic) no electric nor magnetic field in the direction of propagation.Hybrid modes nonzero electric and magnetic fields in the direction of propagation.
What is the direction of the magnetic field if the current is directed upward or downward?
The direction of the magnetic field is counterclockwise or clockwise. For a current flowing in a wire you can use the "left hand rule" If you take your left hand and have the thumb point in direction of electron flow in the wire, the fingers wrapped around the wire will show the direction of the magnetic field by the direction the fingers are pointed..
What happens when you reverse the current in an electromagnet?
The magnetic field reverses direction.
For a loop of current carrying wire in a uniform magnetic field the potential energy is a minimum if the magnetic dipole moment of the loop is?
in the same direction as the field
What is an instrument for determining direction consisting essentially of a freely suspended magnetic needle that points toward the magnetic north?
This is the description of a magnetic compass.
Best description of a magnetic field line?
A magnetic field line shows the direction a compass needle would point
Choose the best description of a magnetic field line.?
A magnetic field line shows the direction a compass needle would point.
What is the direction of magnetic filed lines?
The direction of magnetic field lines are from north to south
What causes the magnet compass to react with a magnet?
a compass works by detecting the earths magnetic field. a magnet also has amagnetic field just not as big so the compass needle points at the magnet ratherthan towards north.Another AnswerThe compass needle is a small bar magnet balanced on a pin. It swivels freely on this balance point. This is how it can align with the magnetic field of the Earth to show what direction magnetic north is. When you introduce another magnetic field, like from a magnet in close proximity, the needle will align with these local fields since their field strength is stronger than Earth's magnetic field - locally.
How can you reverse the direction of the magnetic field in a wire produced by an electric current?
You can reverse the direction of the magnetic field by reversing the direction of the electrical current.
Why Do transverse magnetic mode has no magnetic line is in direction of propagation?
No. It has. Since transverse electric mode has it's wave propagating in the Z direction, and has magnetic field existing in the same direction with NO electric field... Likewise, transverse magnetic mode has it's wave propagating in the Z direction and has electric field existing in the same direction with NO magnetic field.
The force on an electron moving in a magnetic field will be the largest when its direction is?
perpendicular to the magnetic field direction
What is the opposite of magnet?
We usually the term nonmagnetic (or possibly amagnetic) to mean not magnetic. That's the opposite of magnetic, and it means the thing described has no magnetic field impressed upon it, nor will it accept one if it is applied to that thing. Nonferrous and nonmagnetic tools, for example, are used on things that are highly sensitive to damage from magnetic fields. These tools not only are not magnetized, they cannot be magnetized. They won't be attracted to a magnet.
What happens to magnetic field of a wire when you change the direction of the current in the wire?
Direction of the magnetic lines too would get changed
What happen to the magnetic field of a wire when change the direction of the current in the wire?
Direction of the magnetic lines too would get changed
What is magnetic bearing?
It is a bearing (a direction) based on a magnetic compass reading.
