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QNEET-2019-Ph-824: NEET 2019 Physics - Class 12 NEET-2019-Ph-824 Solution: A cylinderical conductor of radius R is carrying a constant…
A cylinderical conductor of radius R is carrying a constant current. The plot of the magnitude of the magnetic field B with the distance d from the centre of the conductor is correctly represented by the figure:
Multiple Choice Options
- A https://pub-09328fb7cd7b4b94aaf562e6bb66ceaf.r2.dev/photos/6cb02866027551bd0335f0784f7f12bb175793ce4583dea7ba8086220f44a1eb.webp
- B https://pub-09328fb7cd7b4b94aaf562e6bb66ceaf.r2.dev/photos/401265d0ecfac08fa215e798f6500a49ebdde92cf58df36756a0e7c740185367.webp
- C https://pub-09328fb7cd7b4b94aaf562e6bb66ceaf.r2.dev/photos/5257574aad7564e52eaa700d1422acc420adcf3c8bda00531ea4a61a09306f7d.webp
- D https://pub-09328fb7cd7b4b94aaf562e6bb66ceaf.r2.dev/photos/87a449ce82eb3db63248c43506da0e348591ba32ac0f8549198bcc3cb8a7fda1.webp
Step-by-Step Verified Solution
The magnetic field inside conductor is given
as
B = _ 0 2 � i R 2 d
_ B _ d
If, straight line passing through origin, at surface
(d = R)
B = _ 0 2 � i R
For the maximum B at outside surface (d > R)
B = _ 0 2 � i d
_ B _ 1 d