Is the force between the wires attractive or repulsive?
Parallel wires carrying currents will exert forces on each other. One wire sets up a magnetic field that influences the other wire, and vice versa. When the current goes the same way in the two wires, the force is attractive. When the currents go opposite ways, the force is repulsive.
What is the relationship between force and current?
1 Answer. Daniel W. Current is directly proportional to magnetic force for a straight current carrying conductor in a uniform magnetic field. So the force is directly proportional to the size of the current.
How do you calculate the force of a wire?
The equation for calculating the force on a wire is Force (N) = magnetic flux density (T) × current (A) × length (m) or, in short F = B I L.
How can you reduce the force of a wire?
So according to this equation, it should be easy to see that there are a few different ways we could reduce the magnetic force: decrease the charge of the object, decrease the speed of the object, decrease the strength of the magnetic field through which the object is traveling, or change the angle between the magnetic …
What 3 factors does Fleming’s left hand rule represent?
(HT) What 3 factors does Fleming’s left hand-rule represent? The force, the current in the conductor, the magnetic field.
What force acts on the wire?
A wire carrying a current creates a magnetic field . This can interact with another magnetic field, causing a force that pushes the wire at right angles.
When the switch is closed which way will the wire move?
Figure 1 shows a piece of apparatus called a current balance. When the switch is closed, the part of the wire labelled X experiences a force and moves downwards.
Does a current carrying conductor kept in magnetic field experience force?
A current carrying conductor produces a magnetic field around it which interacts with the magnetic field in which it is held. Thus, it experiences a force. Direction of this force depends upon the direction of current and the magnetic field.
What is the effect on the current in a wire if?
What is the effect on the current in a wire if both the voltage across it and its resistance are doubled? The current is doubled.
How does the direction of the current affect the magnetic field?
The magnetic field produced by an electric current is always oriented perpendicular to the direction of the current flow. Similar to the situation with electric field lines, the greater the number of lines (or the closer they are together) in an area the stronger the magnetic field.
What happens when you move a magnet near a wire?
When a magnet is moved into a coil of wire, changing the magnetic field and magnetic flux through the coil, a voltage will be generated in the coil according to Faraday’s Law. The polarity of the induced emf is such that it produces a current whose magnetic field opposes the change that produces it.