Biot-Savart Law and its Application to Current Carrying Circular Loop NEET Questions

Physics - Magnetic Effects of Current and Magnetism

Biot-Savart Law and its Application to Current Carrying Circular Loop MCQ Questions


7.
According to the Biot-Savart law, the magnetic field at a point due to a current element is directly proportional to ______.
A.
Current element
B.
Square of the distance
C.
Sine of the angle between current element and position vector
D.
Cosine of the angle between current element and position vector
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ANSWER :
C. Sine of the angle between current element and position vector
8.
In the Biot-Savart law, the magnetic field due to a small current element is ______.
A.
Parallel to the current
B.
Perpendicular to the current element
C.
Opposite to the current
D.
Zero
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ANSWER :
B. Perpendicular to the current element
9.
According to Biot-Savart law, the magnetic field due to a small current element depends on which factors?

NEET - 2024

A.
Current and distance only
B.
Current, distance, and angle
C.
Current and medium only
D.
Distance and medium only
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ANSWER :
B. Current, distance, and angle
10.
What happens to the magnetic field at the center of a circular loop if the current is doubled?
A.
Doubles
B.
Remains same
C.
Halves
D.
Quadruples
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ANSWER :
A. Doubles
11.
The Biot-Savart law helps in determining the magnetic field at any point due to

NEET - 2022

A.
Current in a closed loop
B.
Only a straight conductor
C.
Only a solenoid
D.
Only a toroid
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ANSWER :
A. Current in a closed loop
12.
Which law helps in finding the magnetic field due to a circular current loop?
A.
Faraday’s law
B.
Lenz’s law
C.
Biot-Savart law
D.
Gauss’s law
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ANSWER :
C. Biot-Savart law