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10th CBSE
IMPORTANT
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Choose the incorrect statement from the following regarding magnetic lines of field:

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Important Questions on Magnetic Effects of Electric Current

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10th CBSE
IMPORTANT
Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 2 - Magnetic Effects of Electric Current>NCERT EXEMPLAR PROBLEMS>Q 2

If the key in the arrangement (figure) is taken out (the circuit is made open), the magnetic field lines drawn over the horizontal plane ABCD are:

 

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10th CBSE
IMPORTANT
Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 2 - Magnetic Effects of Electric Current>NCERT EXEMPLAR PROBLEMS>Q 3
A circular loop placed in a plane perpendicular to the plane of paper carries a current when the key is ON. The current as seen from points A and B (in the plane of paper and on the axis of coil) is anti-clockwise and clockwise respectively. The magnetic field lines point from B to A. The north pole of resultant magnet is on the face close to:
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10th CBSE
IMPORTANT
Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 2 - Magnetic Effects of Electric Current>NCERT EXEMPLAR PROBLEMS>Q 4
For a current in a long straight solenoid N and S-pole are created at the two ends. Among the following statements, the incorrect statement is:
HARD
10th CBSE
IMPORTANT
Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 2 - Magnetic Effects of Electric Current>NCERT EXEMPLAR PROBLEMS>Q 5
A uniform magnetic field exists in the plane pointing from left to right as shown in the figure. In the field, an electron and a proton move as shown. The electron and the proton experience: 
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10th CBSE
IMPORTANT
Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 2 - Magnetic Effects of Electric Current>NCERT EXEMPLAR PROBLEMS>Q 6
Commercial electric motor do not use:
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10th CBSE
IMPORTANT
Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 2 - Magnetic Effects of Electric Current>NCERT EXEMPLAR PROBLEMS>Q 7
In the arrangement shown in the figure, there are two coils on a non-conducting cylindrical rod. Initially the key is not inserted. Then the key is inserted and later removed. Then:
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EASY
10th CBSE
IMPORTANT
Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 2 - Magnetic Effects of Electric Current>NCERT EXEMPLAR PROBLEMS>Q 8
Choose the incorrect statement:
MEDIUM
10th CBSE
IMPORTANT
Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 2 - Magnetic Effects of Electric Current>NCERT EXEMPLAR PROBLEMS>Q 9

A constant current flows through a horizontal wire in the plane of the paper from East to West as shown in the figure. The direction of magnetic field will be north to south at a point :

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