Questions
A long wire carries a current of 20 A along the axis of a solenoid. The field due to the solenoid is 4 mT. The resultant field at a point 3 mm from the solenoid axis is
detailed solution
Correct option is B
The fielddue to wire is given byBwire =μ04π×2ir tesla =10−7×2×203×10−3=1.33×10−3T=4/3mTField due to solenoidBsol = 4mTResultant magnetic field =Bwire 2+Bsol 2=(4/3)2+(4)2mT=4⋅2mTTalk to our academic expert!
Similar Questions
Four long insulated current carrying wires, cross each other as shown in the figure. If the separation between any pair of parallel wires is d, the magnetic induction at O is
799 666 8865
support@infinitylearn.com
6th Floor, NCC Building, Durgamma Cheruvu Road, Vittal Rao Nagar, HITEC City, Hyderabad, Telangana 500081.
free study material
JEE Mock Tests
JEE study guide
JEE Revision Notes
JEE Important Questions
JEE Sample Papers
JEE Previous Year's Papers
NEET previous year’s papers
NEET important questions
NEET sample papers
NEET revision notes
NEET study guide
NEET mock tests
