GATE (Graduate Aptitude Test in Engineering) Geology & Geophysics (GG): Questions 114 - 119 of 825
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Question 114
Appeared in Year: 2012
Question MCQ▾
The vector potential due to a magnetic moment at a point is given by . If is directed along the positive z – axis, the x – component of the magnetic field, at the point , is – (June)
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. |
Question 115
Appeared in Year: 2012
Question MCQ▾
Charges Q, Q and -2Q are placed on the vertices of an equilateral triangle ABC of sides of length , as shown in the figure
The dipole moment of this configuration of charges, irrespective of the choice of origin, is – (June)
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. | 0 |
Question 116
Appeared in Year: 2012
Question MCQ▾
Consider an infinite conducting sheet in the XY – plane with a time dependent current density , where K is constant. The vector potential at is given by . The magnetic field is –
(December)
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. |
Passage
The magnetic field of the mode of a rectangular waveguide of dimensions as shows in the figure is given by , where and are in cm.
Question 117 (1 of 2 Based on Passage)
Question 118 (2 of 2 Based on Passage)
Question MCQ▾
The entire range of frequencies for which the mode will propagate is:
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. |
Question 119
Appeared in Year: 2011
Question MCQ▾
A constant electric current I in an infinitely long straight wire is suddenly switched on at . The vector potential at a perpendicular distance from the wire is given by . The electric field at a distance is –
(December)
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | 0 | |
d. |