Question
Download Solution PDFConsider the following statement:
- Magnetic energy density is directly proportional to the square of the magnetic field.
- Magnetic energy density is inversely proportional to the square of the magnetic field.
Which of the following statement is CORRECT?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCONCEPT:
- Electric fields are produced by two kinds of charges, positive and negative.
- Magnetic fields are associated with two magnetic poles, north and south, although they are also produced by charges (but moving charges).
- Magnetic field points in the direction of the force experienced by a north pole.
EXPLANATION:
- The energy per unit volume, which is the instantaneous energy density uB associated with a magnetic field is given by:
- From the above, it is clear that energy density is directly proportional to the magnetic field B2. Therefore option 1 is correct.
Additional Information
- The energy per unit volume, which is the instantaneous energy density uE associated with an electric field is given by:
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