AIEEE 2003 | Magnetic Properties of Matter Question 63 | Physics

A magnetic needle lying parallel to a magnetic field requires $$W$$ units of work to turn it through $${60^ \circ }.$$ The torque needed to maintain the needle in this position will be :

$$\sqrt 3 \,W$$

$$W$$

$${{\sqrt 3 } \over 2}W$$

$$2W$$

AIEEE 2003

MCQ (Single Correct Answer)

-1

The magnetic lines of force inside a bar magnet

are from north-pole to south-pole of the magnet

do not exist

depend upon the area of cross-section of the bar magnet

are from south-pole to north-pole of the Magnet

Questions Asked from Magnetic Properties of Matter (MCQ (Single Correct Answer))

Number in Brackets after Paper Indicates No. of Questions

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