AIPMT 2010 Mains | Moving Charges and Magnetism Question 50 | Physics

AIPMT 2010 Mains

MCQ (Single Correct Answer)

-1

A current loop consists of two identical semicircular parts each of radius R, one lying in the x-y plane and the other in x-z plane. If the current in the loop is $$i$$. The resultant magnetic field due to the two semicircular parts at their common centre is

$${{{\mu _0}i} \over {2\sqrt 2 R}}$$

$${{{\mu _0}i} \over {2R}}$$

$${{{\mu _0}i} \over {4R}}$$

$${{{\mu _0}i} \over {\sqrt 2 R}}$$

AIPMT 2010 Prelims

MCQ (Single Correct Answer)

-1

A galvanometer has a coil of resistance 100 ohm and gives a full scale deflection for 30 mA current. If it is to work as a voltmeter of 30 volt range, the resistance required to be added will be

900 $$\Omega $$

1800 $$\Omega $$

500 $$\Omega $$

1000 $$\Omega $$

AIPMT 2010 Prelims

MCQ (Single Correct Answer)

-1

A square current carrying loop is suspended in a uniform magnetic field acting in the plane of the loop. If the force on one arm of the loop is the net force on the remaining three arms of the loop is

$$3\overrightarrow F $$

$$-$$ $$\overrightarrow F $$

$$-$$ $$3\overrightarrow F $$

$$\overrightarrow F $$

AIPMT 2010 Prelims

MCQ (Single Correct Answer)

-1

A galvanometer has a coil of resistance 100 ohm and gives a full scale deflection for 30 mA current. If it is to work as a voltmeter of 30 volt range, the resistance required to be added will be

900 $$\Omega $$

1800 $$\Omega $$

500 $$\Omega $$

1000 $$\Omega $$

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