Q. 34.5( 19 Votes )

# Find the dimensio

Answer :

A. Electric field is defined as the electrical force per unit electrical

charge. Dimensions of F = [MLT-2]

Dimensions of q = [AT]

Dimensions of E = .

B. Magnetic field is defined as the space around which the effect of a magnetic force can be felt. For a charge q, moving with velocity v in a magnetic field of strength B, the magnetic force F is given by For simplicity let us take to be simply qvB.

So, B will become Dimensions of F = [MLT-2]

Dimensions of q = [AT]

Dimensions of v = [LT-1]

Dimensions of B = .

C. Magnetic permeability is defined as the amount of magnetization a body can acquire. For a wire carrying current I, the magnetic field B produced at a radial distance a is given by the relation Here μ0 is the magnetic permeability of free space.

From the above relation we can write Dimensions of a = [L]

Dimensions of B = Dimensions of I = [A]

Dimensions of μ0 = = [MLT-2A-2]

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