1
NEET 2016 Phase 1
MCQ (Single Correct Answer)
+4
-1
A long straight wire of radius $$a$$ carries a steady current $$I$$. The current is uniformly distributed over its cross-section. The ratio of the magnetic fields B and B', at radial distance $${a \over 2}$$ and 2$$a$$ respectively, from the axis of the wire is
A
1
B
4
C
$${1 \over 4}$$
D
$${1 \over 2}$$
2
NEET 2016 Phase 1
MCQ (Single Correct Answer)
+4
-1
A square loop ABCD carrying a current $$i$$, is placed near and coplanar with a long straight conductor XY carrying a current $$I$$, the net force on the loop will be NEET 2016 Phase 1 Physics - Moving Charges and Magnetism Question 66 English
A
$${{2{\mu _0}liL} \over {3\pi }}$$
B
$${{{\mu _0}liL} \over {2\pi }}$$
C
$${{2{\mu _0}li} \over {3\pi }}$$
D
$${{{\mu _0}li} \over {2\pi }}$$
3
NEET 2016 Phase 1
MCQ (Single Correct Answer)
+4
-1
The magnetic susceptibility is negative for
A
ferromagnetic material only
B
paramagnetic and ferromagnetic materials
C
diamagnetic material only
D
paramagnetic material only
4
NEET 2016 Phase 1
MCQ (Single Correct Answer)
+4
-1
A small signal voltage V(t) = V0 sin$$\omega $$t is applied across an ideal capacitor C
A
Current $$I(t)$$ is in phase with voltage $$V(t)$$.
B
Current $$I(t)$$ leads voltage V(t) by 180o
C
Current $$I(t)$$, legs voltage $$V(t)$$ by 90o.
D
Over a full cycle the capacitor C foes not consume any energy from the voltage source.
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