Magnetic Effects of Current and Magnetism-Biot - Savart Law [NEET (2024 Updated)-National Eligibility cum Entrance Test (Medical) Physics]: Questions 1 - 6 of 21
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Question 1
Question MCQ▾
For the arrangement of two current carrying identical coils shown in the figure, the magnetic field at the center O is (N and a represent number of turns and radius of each coil) -
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. |
Question 2
Question MCQ▾
A conducting circular loop of radius r carries a constant current i. It is placed in a uniform magnetic field B, such that B is perpendicular to the plane of the loop. The magnetic force acting on the loop is
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. | zero |
Question 3
Question MCQ▾
current of 1.0 ampere is flowing in the sides of an equilateral triangle of side 4.5 × 10-2 m. Find the magnetic field at the centroid of the triangle.
(Permeability constant .)
Choices
Choice (4) | Response | |
---|---|---|
a. | 6.0 × 10-8 weber/m2 | |
b. | 4.0 × 10-5 weber/m2 | |
c. | 2.0 × 10-5 eber/m2 | |
d. | 7.0 × 10-12 weber/m2 |
Passage
Read the passage given below and answer the questions that follow:
A conducting wire is bent into a loop as shown in the figure. The segment AOB is parabolic given by the equation y2 = 2x while segment BA is a straight line parallel to the y-axis.
The magnetic field in the region is B and the current in the wire is 2A.
Question 4 (1 of 2 Based on Passage)
Question MCQ▾
The field created by the current in the loop at point C will be
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. | None of the above |
Question 5 (2 of 2 Based on Passage)
Question MCQ▾
Magnetic field at point D due to segment AO of the loop is directed parallel to
Choices
Choice (4) | Response | |
---|---|---|
a. | k | |
b. | -k | |
c. | i | |
d. | j |
Question 6
Question MCQ▾
The magnitude of magnetic field at a point having perpendicular distance 50 mm from a long straight conducting wire carrying a current of 3A is, ()
Choices
Choice (4) | Response | |
---|---|---|
a. | 0.012 G | |
b. | 1.2 G | |
c. | 0.12 G | |
d. | 12 G |