AIPMT 2011 Mains | Moving Charges and Magnetism Question 39 | Physics

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

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

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

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

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

AIPMT 2011 Prelims

MCQ (Single Correct Answer)

-1

A current carrying closed loop in the form of a right angle isosceles triangle ABC is placed in uniform magnetic field acting along AB. If the magnetic force on the arm BC is $$\overrightarrow {F,} $$ the force on the arm AC is

AIPMT 2011 Prelims Physics - Moving Charges and Magnetism Question 54 English

AIPMT 2011 Prelims Physics - Moving Charges and Magnetism Question 54 English

$$ - \sqrt 2 \,\overrightarrow F $$

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

$$\,\overrightarrow F $$

$$\sqrt 2 \,\overrightarrow F $$

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