What is the nature of force between two parallel current?
What is the nature of force between two parallel current?
The force between the two parallel conductors is attractive in nature if the current is flowing in same direction in both the conductors whereas the force is repulsive if the current is flowing in opposite direction in the conductors.
Why two parallel wires carrying current in the same direction attract each other?
Two parallel wires carrying currents in the same direction attract each other due to magnetic interaction between two wires carrying currents because the current in a wire produces a magnetic field and the magnetic interaction is of attractive nature when current in the two parallel wires is in the same direction….
When current are moving in the same direction in two conductor then the force will be?
If the currents in both wires flow in the same direction, the forces acting on the two wires are attractive and they will move towards each other. Conversely, if the currents flow in the opposite directions, the forces will be repulsive and the wires will pull away….
What is the magnetic field strength at a point midway between two long parallel wires?
The magnetic field at a point midway between two parallel long wires carrying currents in the same direction is 10μT. If the direction of the smaller current among them is reversed, the field becomes 30μT.
What is the best core material for an electromagnet?
Iron
Which material is used as core of electromagnet?
iron core
What determines the strength of an electromagnet?
The magnetic field strength of an electromagnet is therefore determined by the ampere turns of the coil with the more turns of wire in the coil the greater will be the strength of the magnetic field.
Which combination of a wire coil and a core would make the strongest electromagnet?
The combined magnetic force of the magnetised wire coil and iron bar makes an electromagnet very strong. In fact, electromagnets are the strongest magnets made. An electromagnet is stronger if there are more turns in the coil of wire or there is more current flowing through it.
What is the relationship of voltage and strength of the electromagnet?
The strength of flux is directly proportional to the induced voltage. The active length of the conductor. Active length meaning the part of the conductor that actually passes through the field. The active length is directly proportional to the induced voltage.
How does the number of coils affect an electromagnet?
Electromagnets are used to lift large masses of magnetic material such as scrap iron. N Increasing the number of coils, which adds more field lines and makes the electromagnet stronger. This is the magnetic field around a piece of wire, compared to a magnetic field on a loop or solenoid it is weak.
Does the length of a wire affect the strength of an electromagnet?
Factors Affecting the Strength of the Magnetic Field of an Electromagnet: Factors that affect the strength of electromagnets are the nature of the core material, strength of the current passing through the core, the number of turns of wire on the core and the shape and size of the core….
What are two advantages of an electromagnet?
Two Advantages of an Electromagnet Over a Permanent Magnet
- Control of Magnet Strength. One of the most important features of an electromagnet is the ability to change its magnetic force.
- Greater Magnet Power. The pulling power of a permanent magnet is limited to the type of metal from which it’s made.
- Electromagnet Uses.
- Permanent Magnet Uses.
Why are electromagnets useful?
Electromagnets are useful because you can turn the magnet on and off by completing or interrupting the circuit, respectively. The doorbell is a good example of how electromagnets can be used in applications where permanent magnets just wouldn’t make any sense.
How is electromagnetism used in everyday life?
Inventors have harnessed electromagnetic forces to create electric motors, generators, MRI machines, levitating toys, consumer electronics and a host of other invaluable devices that you rely on in everyday life….
What is an electromagnet list any two uses?
Two uses of electromagnets are: Electromagnets are used in the construction of a large number of devices like electric bells, loudspeakers, electric motors, electric fans, etc. Electromagnets are used by doctors to remove tiny iron pieces from the eyes of a person (which may have fallen into the eyes accidently)….