1
NEET 2025
MCQ (Single Correct Answer)
+4
-1
Change Language

$A B$ is a part of an electrical circuit (see figure). The potential difference " $V_A-V_B$ ", at the instant when current $i=2 \mathrm{~A}$ and is increasing at a rate of $1 \mathrm{amp} /$ second is:

NEET 2025 Physics - Electromagnetic Induction Question 1 English

A
9 volt
B
10 volt
C
5 volt
D
6 volt
2
NEET 2024 (Re-Examination)
MCQ (Single Correct Answer)
+4
-1
Change Language

Let us consider two solenoids $$A$$ and $$B$$, made from same magnetic material of relative permeability $$\mu_r$$ and equal area of cross-section. Length of $$A$$ is twice that of $$B$$ and the number of turns per unit length in $$A$$ is half that of $$B$$. The ratio of self inductances of the two solenoids, $$L_A: L_B$$ is

A
$$1: 2$$
B
$$2: 1$$
C
$$8: 1$$
D
$$1: 8$$
3
NEET 2023 Manipur
MCQ (Single Correct Answer)
+4
-1
Change Language

An emf is generated by an ac generator having 100 turn coil, of loop area $$1 \mathrm{~m}^2$$. The coil rotates at a speed of one revolution per second and placed in a uniform magnetic field of $$0.05 \mathrm{~T}$$ perpendicular to the axis of rotation of the coil. The maximum value of emf is :-

A
3.14 V
B
31.4 V
C
62.8 V
D
6.28 V
4
NEET 2023
MCQ (Single Correct Answer)
+4
-1
Change Language

The net magnetic flux through any closed surface is :

A
Positive
B
Infinity
C
Negative
D
Zero
NEET Subjects
EXAM MAP
Medical
NEETAIIMS
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
Staff Selection Commission
SSC CGL Tier I
CBSE
Class 12