AIPMT 2015 Cancelled Paper | NEET Year Wise Previous Years Questions

A conducting square frame of side 'a' and a long straight wire carrying current $$I$$ are located in the same plane as shown in the figure. The frame moves to the right with a constant velocity 'V'. The emf induced in the frame will be proportional to

AIPMT 2015 Cancelled Paper Physics - Moving Charges and Magnetism Question 64 English

AIPMT 2015 Cancelled Paper Physics - Moving Charges and Magnetism Question 64 English

$${1 \over {{{\left( {2x + a} \right)}^2}}}$$

$${1 \over {\left( {2x - a} \right)\left( {2x + a} \right)}}$$

$${1 \over {{x^2}}}$$

$${1 \over {{{\left( {2x - a} \right)}^2}}}$$

AIPMT 2015 Cancelled Paper

MCQ (Single Correct Answer)

-1

A wire carrying current $$I$$ has the shape shown in adjoining figure.

AIPMT 2015 Cancelled Paper Physics - Moving Charges and Magnetism Question 65 English

AIPMT 2015 Cancelled Paper Physics - Moving Charges and Magnetism Question 65 English

Linear parts of the wire are very long and parallel to X-axis while semicircular protion of radius R is lying in Y-Z plane. Magtnetic field at pont $$O$$ is

$$\overrightarrow B = - {{{\mu _0}I} \over {4\pi R}}\left( {\pi \widehat i + 2\widehat k} \right)$$

$$\overrightarrow B = {{{\mu _0}I} \over {4\pi R}}\left( {\pi \widehat i - 2\widehat k} \right)$$

$$\overrightarrow B = {{{\mu _0}I} \over {4\pi R}}\left( {\pi \widehat i + 2\widehat k} \right)$$

$$\overrightarrow B = - {{{\mu _0}I} \over {4\pi R}}\left( {\pi \widehat i - 2\widehat k} \right)$$

AIPMT 2015 Cancelled Paper

MCQ (Single Correct Answer)

-1

A resistance 'R' draws power 'P' when connected to an AC source. If an inductance is now placed in series with the resistance, such that the impedance of the circuit becomes 'Z'. the power drawn will be

$$P\left( {{R \over Z}} \right)$$

$$P{\left( {{R \over Z}} \right)^2}$$

$$P\sqrt {{R \over Z}} $$

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