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Moving Charges And Magnetism

Question
CBSEENPH12037622
Wired Faculty App

Write the SI unit of (i) magnetic pole strength (ii) magnetic dipole moment of a bar magnet.

Solution

(i) The SI unit of magnetic pole strength is Ampere-metre (A-m). 

(ii) The SI unit of magnetic dipole strength is Ampere metre2 (Am2).

Some More Questions From Moving Charges And Magnetism Chapter

Two moving coil meters, M1 and M2 have the following particulars:
R1 = 10 Ω   N1 = 30,
A1 = 3.6 x 10–3 m2,  B1 = 0.25 T
R2 = 14 Ω;  N2 = 42,
A2 = 1.8 x 10–3 m2, B2 = 0.50 T
(The spring constants k are identical for the two meters).
Determine the ratio of (a) current sensitivity and (b) voltage sensitivity of M2 and M1.

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