Important questions for class 12 Physics Chapter 1 Electric Charges and Fields

important questions class 12 physics chapter 1 electric charges fields 1

A small bar magnet has a magnetic moment

1.2 A - m^{2}

. The magnetic field at a distance 0.1 m on its axis will be:

(μ_{0} = 4 π \times 10^{- 7} T - m / A)

1.2 \times 10^{- 4} T

2.4 \times 10^{- 4} T

2.4 \times 10^{4} T

1.2 \times 10^{4} T

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Chapter 1 - Electric Charges and Fields