Magnetic Effects of Current and Magnetism-Biot - Savart Law (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics): Questions 9 - 11 of 11
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Question number: 9
» Magnetic Effects of Current and Magnetism » Biot - Savart Law
Question
A circular coil of 0.2 m diameter has 1000 turns and carries a current of 0.1 ampere. The intensity of magnetic field at the center of the coil is-
Choices
| Choice (4) | Response | |
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| a. | 62.8 x 10 -4 N/A∙m |
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| b. | 6.28 x l0 -4 N/A∙m |
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| c. | 62.8 x 10 -5 N/A∙m |
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| d. | 6.28 x 10 -5 N/A∙m |
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Question number: 10
» Magnetic Effects of Current and Magnetism » Biot - Savart Law
Question
A circular arc of wire of radius of curvature r subtends an angle of radian at its center. If current i is flowing in it then the magnetic induction at its center is –
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| b. |
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| c. |
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| d. | 0 |
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Question number: 11
» Magnetic Effects of Current and Magnetism » Biot - Savart Law
Question
A current i is flowing in a conductor PQRST shaped as shown in the figure. The radius of curved part QRS is r and length of straight portions PQ and ST is very large. The magnetic field at the center O of the curved part is –
Current Flowing Conductor PQRST
A current i is flowing in a conductor PQRST shaped as shown in the figure. The radius of curved part QRS is r and length of straight portions PQ and ST is very large.
Choices
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| c. |
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