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Using Ampere's circutial law, obtain the expression for the magnetic field due to a long solenoid a point inside the solenoid on its axis. |
Answer» SOLUTION : `oint vec(B)*vec(DL)= mu_(0)Sigmai` `int_(a)^(b) vec(B)*vec(dl)+int_(b)^(c)vec(B)*vec(dl)+ int_(c)^(d)vec(B)*vec(dl)+int_(d)^(a)vec(B)*vec(dl)=mu_(0)I(NH)` `Bh + 0 + 0 + 0 = mu_(0) I (nh)` `B= mu_(0)N I` |
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