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Which of the following graphs shows the variation of magnetic field B With distance for a long current carrying conductor.

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Important Questions on Magnetic Effect of Electric Current

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MHT-CET TRIUMPH Physics Multiple Choice Questions Part - 1 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 7 - Magnetic Effect of Electric Current>Critical Thinking>Q 33
A homogeneous electric field E→ and a uniform magnetic field B→ are pointing in the same direction. A proton is projected with its velocity parallel to E. It will
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MHT-CET TRIUMPH Physics Multiple Choice Questions Part - 1 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 7 - Magnetic Effect of Electric Current>Critical Thinking>Q 34
A wire carrying current I and other carrying 2I in the same direction produce a magnetic field B at the mid-point. What will be the field, when 2I wire is switched off?
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MHT-CET TRIUMPH Physics Multiple Choice Questions Part - 1 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 7 - Magnetic Effect of Electric Current>Critical Thinking>Q 35
Two electrons move parallel to each other with equal speed v. The ratio of magnetic and electrical forces between them is,
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MHT-CET TRIUMPH Physics Multiple Choice Questions Part - 1 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 7 - Magnetic Effect of Electric Current>Critical Thinking>Q 36

A uniform conducting wire ABC has a mass of 10 g. A current of 2 A flows through it. The wire is kept in a uniform magnetic field B=2 T. The acceleration of the wire will be,

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MHT-CET TRIUMPH Physics Multiple Choice Questions Part - 1 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 7 - Magnetic Effect of Electric Current>Critical Thinking>Q 37
The work done by a magnetic field on moving charge is,
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MHT-CET TRIUMPH Physics Multiple Choice Questions Part - 1 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 7 - Magnetic Effect of Electric Current>Critical Thinking>Q 38
For a given perimeter in plane following are some shapes mentioned. Choose the shape for the loop such that which when placed inside magnetic field will have maximum torque acting on it.
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MHT-CET TRIUMPH Physics Multiple Choice Questions Part - 1 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 7 - Magnetic Effect of Electric Current>Critical Thinking>Q 39
Three long straight wires are connected parallel to each other across a battery of negligible internal resistance. The ratio of their resistance are 3: 4: 5. What is the ratio of distances of middle wire from the others if the net force experienced by it is zero?
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MHT-CET TRIUMPH Physics Multiple Choice Questions Part - 1 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 7 - Magnetic Effect of Electric Current>Critical Thinking>Q 40
A horizontal rod of mass 10 g and length 10 cm is placed on a smooth plane inclined at an angle of 60° with the horizontal, with the length of the rod parallel to the edge of the inclined plane. A uniform magnetic field of induction B is applied vertically downwards. If the current through the rod is 1.73 A, then the value of B for which the rod remains stationary on the inclined plane is,