Physics
2019 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
Complete GATE PH 2019 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 49–51 of 65. Imported answers require review unless explicitly marked reviewed.
Question 39
Open questionPHMCQ2 marksNeeds review
An infinitely long wire parallel to the
-axis is kept at
and carries a current
in the positive
direction above a superconductor filling the region
(see figure).
The magnetic field
inside the superconductor is zero so that the field just outside the superconductor is parallel to its surface. The magnetic field due to this configuration at a point
isYour answerChoose one option.
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Open questionPHMCQ2 marksNeeds review
The vector potential inside a long solenoid, with
turns per unit length and carrying current
, written in cylindrical coordinates is
. If the term
, where
is added to
, the magnetic field remains the same ifYour answerChoose one option.
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Open questionPHMCQ2 marksNeeds review
Low energy collision (
-wave scattering) of pion (
) with deuteron (d) results in the production of two protons (
). The relative orbital angular momentum (in units of
) of the resulting two-proton system for this reaction isYour answerChoose one option.
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