N equally spaced charges each of value q , are placed on a circle of radius R . The circle rotates about its axis with an angular velocity ω as shown in the figure. A bigger Amperian loop B encloses t

Question

N equally spaced charges each of value q , are placed on a circle of radius R . The circle rotates about its axis with an angular velocity $ω$ as shown in the figure. A bigger Amperian loop B encloses the whole circle where as a smaller Amperian loop A encloses a small segment. The difference between enclosed currents, $I_{A} - I_{B}$ , for the given Amperian loops is

Question diagram: N equally spaced charges each of value q , are placed on a c

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Answer:

D

Solution:

$I_{A} = \frac{Nq}{\frac{2 π}{ω}} I_{A} = \frac{Nq ω}{2 π}, I_{B} = 0 I_{A} = I_{B} = \frac{Nq ω}{2 π}$

TestHub · Accepted Answer

​ I A ​ = ω 2 π ​ Nq ​ I A ​ = 2 π Nq ω ​ , I B ​ = 0 I A ​ = I B ​ = 2 π Nq ω ​ ​

Physics - Magnetic Effect of Current Question with Solution | TestHub

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