Name: Electric Field: Time Varying Magnetic Field
Uploaded: 2019-07-19
Duration: 8 min 32 s
Description: Did you know that the cause of the movement of charges in a stationary circular conducting coil placed in a time-varying magnetic field is due to an induced...

Question

Name the SI unit of magnetic flux and magnetic induction.

Accepted Answer

SI Unit of magnetic flux is weber and unit of magnetic induction is tesla.

Magnetic flux is defined as the number of magnetic field lines passing through a given closed surface. It provides the measurement of the total magnetic field that passes through a given surface area.

The SI unit of magnetic flux is the Weber $(W b) .$ A flux density of one $W b / m^{2}$ (one Weber per square metre) is one Tesla $(T) .$ Weber is commonly expressed in a multitude of other units.

$W b = \frac{k g . m^{2}}{s^{2} . A} = V . s = H . A = T . m^{2} = \frac{J}{A} = 10^{8} M . x$

Where,

$W b =$ Weber

$T =$ Tesla

$V =$ volt

$m =$ metre

$J =$ joule

$s =$ second

$H =$ Henry

$A =$ ampere

$M x =$ Maxwell

When the magnetic flux is uniformly distributed over an area $A,$ then in that case we define magnetic flux density $(B),$ as the magnetic flux $(Ф)$ per unit area $(A) .$

Magnetic induction is the measure of magnetic flux per unit area.
$B = Φ A$

$($ when area $A$ is perpendicular to magnetic flux $Ф)$ )

On the basis of this relation, the $S . I .$ unit of magnetic flux density is given by

$1$ tesla = $\frac{w e b e r}{m^{2}} .$

Name the SI unit of magnetic flux and magnetic induction.

Important Questions on Electromagnetic Induction

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