Magnetic Effects Of Current Question 179
Question: A current of 10 ampere is flowing in a wire of length 1.5 m. A force of 15 N acts on it when it is placed in a uniform magnetic field of 2 tesla. The angle between the magnetic field and the direction of the current is [MP PMT 1994]
Options:
A) $ 30{}^\circ $
B) $ 45{}^\circ $
C) $ 60{}^\circ $
D) $ 90{}^\circ $
Show Answer
Answer:
Correct Answer: A
Solution:
$ F=Bil\sin \theta \Rightarrow \sin \theta =\frac{F}{Bil}=\frac{15}{2\times 10\times 1.5}=\frac{1}{2} $
Þ $ \theta =30{}^\circ $
BETA
