AIPMT 2012 Prelims | Moving Charges and Magnetism Question 38 | Physics

AIPMT 2012 Prelims

MCQ (Single Correct Answer)

-1

A milli voltmeter of 25 milli volt range is to be converted into an ammeter of 25 ampare range. The value (in ohm) of neccessary shunt will be

0.001

0.01

0.05

AIPMT 2011 Mains

MCQ (Single Correct Answer)

-1

A square loop, carrying a teady current $$I$$, is placed in a horizontal plane near a long straight conductor carrying a steady current $$I$$₁ at a distance d from the conductor as shown in figure. The loop will experience
AIPMT 2011 Mains Physics - Moving Charges and Magnetism Question 49 English

AIPMT 2011 Mains Physics - Moving Charges and Magnetism Question 49 English

a net attractive force towards the conductor

a net repulsive force away from the conductor

a net torque acting upward perpendicular to the horizontal plane

a net torque acting downward normal to horizontal plane

AIPMT 2011 Mains

MCQ (Single Correct Answer)

-1

A galvanometer of resistance, G, is shunted by a resistance S ohm. To keep the main current in the circuit unchanged, the resistance to be put in series with the galvanometer is

$${G \over {(S + G)}}$$

$${{{S^2}} \over {\left( {S + G} \right)}}$$

$$\left( {{{SG} \over {S + G}}} \right)$$

$${{{G^2}} \over {(S + G)}}$$

AIPMT 2011 Mains

MCQ (Single Correct Answer)

-1

Charge q is uniformly spread on a thin ring of radius R. The ring rotates about its axis with a uniform frequency $$f$$ Hz. The magnitude of magnetic induction at the center of the ring is

$${{{\mu _0}qf} \over {2\pi R}}$$

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

$${{{\mu _0}q} \over {2fR}}$$

$${{{\mu _0}q} \over {2\pi fR}}$$

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