A long straight wire carries a current of 35 A. What is the magnitude of the field B at a point 20 cm from the wire?
Current in the wire, I = 35 A
Distance of a point from the wire, r = 20 cm = 0.2 m
Magnitude of the magnetic field at this point is given as:
B
Where,
μ0= Permeability of free space = 4π × 10–7 T m A–1
Hence, the magnitude of the magnetic field at a point 20 cm from the wire is 3.5 × 10–5 T.
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Welcome to the NCERT Solutions for Class 12 Physics - Chapter . This page offers a step-by-step solution to the specific question from Excercise 1 , Question 2: A long straight wire carries a current of 35 A. What is the magnitude of the field B at a point 20 c....
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Sir main class 12th student hun es lie main aap se class karna chahta hun
3.5Ã10a^â¬"5T What is means a^â¬"5