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A long straight wire carriers a current along the x-axis. Consider the points A(0,1,0), B(0,1,1), C(1,0,1) and D(1,1,1). Which of the following pairs of points will have magnetic field of the same magnitude? 0 ) 1 1) and D(1 1). Which of the following pairs of points will have magnetic field of the same magnitude? [...]

The relative density of material of a body is found by weighing it first in air and then in water. If the weight in air is (5.00±0.05)N and the weight in water is (4.00±0.05)N. Find the relative density along with the maximum permissible percentage error. A physical parameter a can be determined by measuring the [...]

A physical parameter a can be determined by measuring the parameters b, c, d and e using the relation a=b ^ α c ^ β/ d ^ γ e ^ δ . If the maximum errors in the measurement of b, c, d and e are b1 % ,c1%, d1% and e1%, then find the [...]