0
When AC (alternating current) is passed through a wire, the current flow changes direction periodically. This change in current flow causes the wire to experience an electromagnetic force that makes it move back and forth, creating vibrations. These vibrations are more pronounced at certain frequencies because of resonance effects.
What else can I help you with?
Why does the temperature of a wire increase when current flows through it?
The temperature of a wire increases when current flows through it due to resistance. As the electrons move through the wire, they collide with the atoms in the wire, causing them to vibrate and generate heat. This phenomenon is known as Joule heating.
Why does heating a metal wire affect its electrical resistance?
Heating a metal wire affects its electrical resistance because as the wire heats up, the atoms within the wire vibrate more vigorously, causing more collisions with the electrons flowing through the wire. This increased collision rate hinders the flow of electrons, leading to a higher resistance in the wire.
How does the wire vibrate if the magnetic field is made vertical?
If the magnetic field is made vertical, it will exert a force perpendicular to the direction of current flow in the wire. This force will cause the wire to move up and down, vibrating vertically. The frequency of this vibration will be directly proportional to the strength of the magnetic field and the current flowing through the wire.
How does the wire vibrate if the magnetic field is made vertical in sonometer experiment?
If the magnetic field is made vertical in a sonometer experiment, the wire will vibrate in a direction perpendicular to the magnetic field. This is because the Lorentz force, which causes the wire to move, is perpendicular to both the current flowing in the wire and the magnetic field. This results in the wire moving up and down, or side to side, depending on the setup.
Why do wires heat up?
Wires heat up when current flows through them due to resistance in the material. As electrons move through the wire, they collide with atoms, which causes them to vibrate and generate heat. This is known as Joule heating.
Why does the temperature of a wire increase when current flows through it?
The temperature of a wire increases when current flows through it due to resistance. As the electrons move through the wire, they collide with the atoms in the wire, causing them to vibrate and generate heat. This phenomenon is known as Joule heating.
What shape is the magnetic field produced when current is passed through wire?
CIRCULAR
Is copper wire is magnetic?
it produces a magnetic field. i think that if current is passed through the wire it can attract pieces of iron
When a current is passed through a coil of wire what forms Is it A. an electromagnet or B. A commutator?
a magnetic field
How is electricity transferred from batteries to the light bulb?
Electricity is passed through a wire from battery to bulb
What is made by passing an electric current through coils of wire?
An electro magnet is created when a current is passed through a coil of wire. This effect is the main operation of how an electrical solenoid operates.
When does an electromagnet produce a field?
An electromagnet produces a magnetic field when current is passed through it wire winding.
What happens when electric current is passed through Cu wire?
When electric current is passed through a copper (Cu) wire, the free electrons in the wire start to move in the direction of the current flow. This movement of electrons constitutes an electric current, which generates heat due to resistance in the wire. The wire may also produce a magnetic field around it as the electrons move.
Why does heating a metal wire affect its electrical resistance?
Heating a metal wire affects its electrical resistance because as the wire heats up, the atoms within the wire vibrate more vigorously, causing more collisions with the electrons flowing through the wire. This increased collision rate hinders the flow of electrons, leading to a higher resistance in the wire.
When DC is past throgh coil of wire what is formed?
When a current is passed through coiled wire, the wire will store some of that energy in a magnetic field. As soon as the source of the current is removed, the engergy in the magnetic field will return to the wire.
Does nichrome wire get red hot when current is passed through it?
Yes, nichrome wire gets red hot when current is passed through it due to its high resistance, which causes it to generate heat. This property is used in applications such as heating elements in appliances.
If the current running through a wire is 1.2 amperes and it passed through a resistor of 7.5 Ohms what is the voltage of the system?
9V by using ohms law
