Embibe Experts Solutions for Exercise 4: Assignment

If number of turns and radius of cross-section of the coil of a tangent galvanometer are doubled. The reduction factor $k$ will be

The figure illustrates how $B,$ the flux density, inside a sample of ferromagnetic material varies with external magnetic field $B_0.$ For the sample to be suitable for making a permanent magnet

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Soft iron is used in many parts of electrical machines for

Magnetic susceptibility for a diamagnetic substance is

Area of $B-H$ curve measures the energy loss

The unit of magnetic susceptibility is

One weber is equal to

The variation of magnetic susceptibility$\left(\chi \right)$ with absolute temperature $\left(T\right)$ for a ferromagnetic material is