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Important Questions on Magnetic Effects of Electric Current

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10th CBSE
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NCERT EXEMPLAR PROBLEMS-SOLUTIONS SCIENCE Class X>Chapter 13 - Magnetic Effects of Electric Current>Multiple Choice Questions (MCQs)>Q 12
The most important safety method used for protecting home appliances from short circuiting or overloading is
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NCERT EXEMPLAR PROBLEMS-SOLUTIONS SCIENCE Class X>Chapter 13 - Magnetic Effects of Electric Current>Short Answer Type Questions>Q 13

A magnetic compass needle is placed in the plane of paper near point A as shown in figure. In which plane should a straight current carrying conductor be placed so that it passes through A and there is no change in the deflection of the compass? Under what condition is the deflection maximum and why?

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NCERT EXEMPLAR PROBLEMS-SOLUTIONS SCIENCE Class X>Chapter 13 - Magnetic Effects of Electric Current>Short Answer Type Questions>Q 14
Under what conditions permanent electromagnet is obtained if a current carrying solenoid is used? Support your answer with the help of a labelled circuit diagram.
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10th CBSE
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NCERT EXEMPLAR PROBLEMS-SOLUTIONS SCIENCE Class X>Chapter 13 - Magnetic Effects of Electric Current>Short Answer Type Questions>Q 15

AB is a current carrying conductor in the plane of the paper as shown in figure. What are the directions of magnetic fields produced by it at points P and Q? Given r1>r2, where will the strength of the magnetic field be larger?

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10th CBSE
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NCERT EXEMPLAR PROBLEMS-SOLUTIONS SCIENCE Class X>Chapter 13 - Magnetic Effects of Electric Current>Short Answer Type Questions>Q 16
A magnetic compass shows a Deflection, when placed near a current carrying wire. How will the deflection of the compass get affected, if the current in the wire is increased? Support your answer with a reason.
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10th CBSE
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NCERT EXEMPLAR PROBLEMS-SOLUTIONS SCIENCE Class X>Chapter 13 - Magnetic Effects of Electric Current>Short Answer Type Questions>Q 17
It is established that an electric current through a metallic conductor produces a magnetic field around it. Is there a similar magnetic field produced around a thin beam of moving i alpha particles, ii neutrons? Justify your answer.
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10th CBSE
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NCERT EXEMPLAR PROBLEMS-SOLUTIONS SCIENCE Class X>Chapter 13 - Magnetic Effects of Electric Current>Short Answer Type Questions>Q 18
What does the direction of thumb indicate in the right-hand thumb rule? In what way this rule is different from Fleming's Left-hand rule.
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10th CBSE
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NCERT EXEMPLAR PROBLEMS-SOLUTIONS SCIENCE Class X>Chapter 13 - Magnetic Effects of Electric Current>Short Answer Type Questions>Q 19
Meena draws magnetic field lines of field close to the axis of a current carrying circular loop. As she moves away from the centre of the circular loop she observes that the lines keep on diverging. How will you explain her observation?