Magnetic Effects Of Current Question 209
Question: A circular loop has a radius of 5 cm and it is carrying a current of 0.1 amp. Its magnetic moment is [MP PMT 2000]
Options:
A) $ 1.32\times {{10}^{-4}}amp-m^{2} $
B) $ 2.62\times {{10}^{-4}}amp\text{-}m^{2} $
C) $ 5.25\times {{10}^{-4}}amp\text{-}m^{2} $
D) $ 7.85\times {{10}^{-4}}amp\text{-}m^{2} $
Show Answer
Answer:
Correct Answer: D
Solution:
$ M=iA=0.1\times \pi \times {{( 0.05 )}^{2}} $ $ =( 0.1 )\times 3.14\times 25\times {{10}^{-4}}=7.85\times {{10}^{-4}}amp-m^{2} $
BETA
