What is the magnetic effect of electric current class 12th?

Magnetic Effect of Electric Current – A magnetic field is a force field that is created by magnetic dipoles and moving electric charges, and it exerts a force on other nearby moving charges and magnetic dipoles. Magnetic Field is a vector quantity because it has both magnitude and direction.

Which chapter is magnetic effect of electric current in 12?

Magnetic Effect of Current Class 12 – Introduction, Biot Savart’s Law. The electricity and magnetism are linked to each other and it is proved when the electric current passes through the copper wire, it produces a magnetic effect. The electromagnetic effects first time noticed by Hans Christian Oersted.

What are magnetic effect of electric current?

The magnetic effect of electric current is known as electromagnetic effect. It is observed that when a compass is brought near a current carrying conductor the needle of compass gets deflected because of flow of electricity. This shows that electric current produces a magnetic effect.

What do you mean by magnetic effect of electric current who discovered it?

Hans Christian Oersted
Hans Christian Oersted discovered the magnetic effect of electric current in the year 1982. On 21 April 1820, Oersted published his discovery that a compass needle was deflected by a nearby electric current from the magnetic north, confirming a direct relationship between electricity and magnetism.

What is magnetic field class 12th?

Magnetic Field: Magnetic Field is defined as the space around a magnet (or a current-carrying conductor) in which its magnetic effect can be experienced. The magnetic field in a region is said to be uniform if the magnitude of its strength and direction is the same at all points in that region.

What is magnetic field Class 12 Ncert?

Magnetic field is an effect around a permanent magnet or a moving charge due to which ferromagnetic objects like some metals get attracted, and diamagnetic substances gets repelled, when placed in the magnetic field. A charge in motion generates magnetic field, just like a charge at rest generates an electric field.

What is magnetic effect of electric current who discovered it and when?

Hans Christian Oersted (1777–1851) In 1820 he accidentally discovered that a compass needle got deflected when an electric current passed through a metallic wire placed nearby. Through this observation Oersted showed that electricity and magnetism were related phenomena.

What is the magnetic effect of current How was it discovered?

The term magnetic effects of current means the current flowing through a wire creates a magnetic field around it. Hans Christian Oersted discovered the magnetic influence of the current in the year of 1820 and noticed that a wire carrying a current could deflect a magnetic needle.

What is the magnetic effect of electric current Class 7?

When an electric current passes through a wire, it behaves like a magnet. This magnetic effect of electric current is known as electromagnetic effect.

What is magnetic force on a current carrying conductor?

The magnetic force on current-carrying conductors is given by. F=IlBsinθ F = I l B sin ⁡ where I is the current, l is the length of a straight conductor in a uniform magnetic field B, and θ is the angle between I and B. The force follows RHR-1 with the thumb in the direction of I.

How is magnetic effect of current obtained in Class 12?

So, go ahead and check the Important Notes for Class 12 Physics Magnetic Effect of Current. A magnetic field is produced in the surrounding of any current carrying conductor. The direction of this magnetic field can be obtained by Ampere’s swimming rule. SI unit of magnetic field is Wm -2 or T (telsa).

Which is SI unit of magnetic effect of current?

When is the magnetic force attractive or repulsive?

The force is attractive if current In both conductors is in same direction and repulsive if current 10 both conductors is in opposite direction. (if the currents is both parallel wires arc equal and In same direction, then magnetic field at a point exactly half way between the wire is zero.)

How is magnetic field produced by carrying element dl?

The magnetic field produced by a current carrying element of length dl, carrying current I at a point separated by a distance r is given by where, θ is the angle between the direction of the current and μ o is absolute permeability of the free space.