magnetic effects of electric current — Science STD 10 — Question
Gujarat BoardEnglish MediumSTD 10Sciencemagnetic effects of electric current4 Marks
Question
To understand about magnetic force acting on a current carrying conductor, when placed in an external magnetic field. Explain
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Answer
⇒ Aim : To understand about magnetic force acting on a current carrying conductor, when placed in an external magnetic field. ⇒ Procedure with explanation : → In the figure, $A B$ is light weight thin aluminium rod, placed between two magnetic poles of a horse shoe magnet, connected with battery, key and rheostat. → When the key $K$ is made closed, current passes through the rod from $B$ to $A$. We notice that rod gets displaced towards left. → Now, after reversing the battery termmais, if above procedure is repeated then direction of current gets reversed. At this time, we notice that rod gets displaced towards right. → Conclusion : When a current carrying conductor is placed in some external magnetic field at an angle $0^{\circ}<\theta<180^{\circ}$, it experiences a magnetic force. Where direction of current passing through the conductor is reversed, direction of this magnetic force also gets reversed.
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