Published by:
CGP EDU Academic Team
Published on: September 13, 2026
A long solenoid of diameter 0.1 m has 
turns per meter. At the centre of the solenoid, a coil of 100 turns and radius 0.01 m is placed with its axis coinciding with the solenoid axis. The current in the solenoid reduces at a constant rate to 0 A from 4 A in 0.05 s. If the resistance of the coil is 
. the total charge flowing through the coil during this time is:
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
Given, no. of turns 
radius, 
resistance, 
As we know,
'-' ve sign shows that induced emf opposes the change of flux.
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
A uniform magnetic field exists in a direction perpendicular to the plane of a square loop made of…
A small bar magnet is moved through a coil at constant speed from one end to the other. Which of th…
An infinitely long, straight wire carrying current I, one side opened rectangular loop and a conduc…
A long solenoid of radius carries a time dependent current . A ring of radius is placed coaxiall…
At time magnetic field of Gauss is passing perpendicularly through the area defined by the closed…
Magnetic flux (in weber) in a closed circuit of resistance 20 varies with time t(s) as = 8t 2 - 9…