Explore topic-wise MCQs in Physics.

This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your Physics knowledge and support exam preparation. Choose a topic below to get started.

1.

A long straight wire of radius x carries a steady current I. The current is uniformly distributed across its cross section. Calculate the ratio of the magnetic field at ( frac {x}{4} ) and 8x.

A. 4
B. 3
C. 2
D. 1
Answer» D. 1
Discussion
2.

Which law can ampere s circuital be derived from?

A. Gauss Law
B. Newton s Law
C. Kirchhoff s Law
D. Biot-Savart Law
Answer» E.
Discussion
3.

The angle at which a charged particle moves through a magnetic field with a velocity, having zero magnetic force is 180o.

A. True
B. False
Answer» C.
Discussion
4.

What is the magnetic field inside a pipe?

A. Unity
B. Infinity
C. Zero
D. Two
Answer» D. Two
Discussion
5.

Identify the expression for ampere s circuital law from the following?

A. &amp;conint; B .dl = <sub>0</sub>I
B. &amp;conint; B .dl = ( frac { mu_0}{I} )
C. &amp;conint; B .dl = 2 <sub>0</sub>I
D. &amp;conint; B .dl = 4 <sub>0</sub>I
Answer» B. &amp;conint; B .dl = ( frac { mu_0}{I} )
Discussion