Which one of the following relations is correct?
Correct answer: D. All of these
- A. 1 Wb m-2 = N m-1 A-1
- B. 1 Tesla = 104 Gauss
- C. 1 Wb m-2 = 1 Tesla
- D. All of these
Explanation
Option D is the correct choice because all the given relations are accurate. Option A correctly equates 1 Weber per square meter to N m-1 A-1, which is another expression for Tesla. Option B is correct as 1 Tesla equals 10,000 Gauss, bridging the SI and CGS units. Option C is correct because 1 Weber per square meter is by definition 1 Tesla. These consistent relationships validate that 'All of these' is the correct answer.
This question appeared on the UHS MDCAT 2010 paper, which you can sit online with every answer explained.
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About Magnetic Flux Density
Magnetic flux density measures the magnetic force acting on a current carrying conductor or moving charge in a magnetic field. Work includes the relations B equals F divided by IL and F equals qvB, the tesla as its SI unit, field direction and the distinction between flux density and magnetic flux.
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