A long solenoid has 200 turns per 
and carriers a current 
. The magnetic field at its centre is 
. Another long solenoid has 100 turns per 
and it carries a current 
. The value of magnetic field at its center is nearly
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
Magnetic field due to a long solenoid is given by, 
Magnetic field when another solenoid has 100 turns per 
and current is 
, then,
(ii)
From equation (i) and (ii), 
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
In cyclotron, for a given magnet, tadius of the semicircle traced by positive ion is directly propo…
A range of galvanometer is ' ', when resistance is connected in series. Its range gets doubled wh…
A galvanometer of resistance is connected to a battery of emf with resistance in series. A full …
Two particles and having equal charges after being accelerated through same potential difference …
The magnetic field inside a long solenoid having , turns per unit length and carrying current wh…
Sensitivity of moving coil galvanometer is s. If a shunt of of the resistance of galvanometer is c…