Magnetic Effects of Current and Magnetism [NEET (2024 Updated)-National Eligibility cum Entrance Test (Medical) Physics]: Questions 115 - 117 of 246
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Question 115
Question Assertion-Reason▾
Assertion(Ꭺ)
The magnetic field at the center of the square loop is zero, when the current flow through the loop from a battery connected at the diagonal corner.
Reason(Ꭱ)
Magnetic lines due to a current in a magnetic conductor are circular.
Choices
Choice (4) | Response | |
---|---|---|
a. | Ꭺ is true but Ꭱ is false | |
b. | Both Ꭺ and Ꭱ are false | |
c. | Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ | |
d. | Ꭺ is false but Ꭱ is true |
Question 116
Question MCQ▾
A current carrying rectangular coil is placed in a uniform magnetic field. In which orientation, the coil will tend to rotate
(1) The magnetic field is parallel to the plane of the coil
(2) The magnetic field is at 45° with the plane of the coil
(3) In any orientation
(4) The magnetic field is perpendicular to the plane of
Select the correct answers and mark it according to the following codes:
Choices
Choice (4) | Response | |
---|---|---|
a. | 1,2 and 3 are correct | |
b. | 1 and 2 are correct | |
c. | 2 and 4 are correct | |
d. | 1 and 3 are correct |
Question 117
Question MCQ▾
A charged particle is released from rest in a region of steady uniform electric and magnetic fields which are parallel to each other. The particle will move in a
Choices
Choice (4) | Response | |
---|---|---|
a. | Cycloid | |
b. | Straight line | |
c. | Circle | |
d. | Helix |