badge image

Enroll For Free Now & Improve Your Performance.

×
User Icon
User Icon
User Icon
User Icon
User Icon

Thank you for registering.

One of our academic counsellors will contact you within 1 working day.

Please check your email for login details.
MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping
Menu
Grade: 12th pass

                        

A wire oriented in the east-west direction carries a current east -ward.Direction of the magnetic field at a point to the south of wire wil be?

2 years ago

Answers : (1)

Susmita
425 Points
							
Allright.So draw x-y axis on your paper.The x axis is the wire extending from negative x axis to positive x axis.The current is flowing from negative x axis to positive x axis.We are asked to find out direction of B at any point on negative y axis(or parallel to x axis in south).
Use the right hand screw rule.You will see B is into the plane of the paper,ie,along the negative z axis.
If you want to find it mathematically,use the biosavart law
B=\frac{\mu}{4\pi}\int \frac{\vec{I}dl*\vec{l}}{l^3}
Here Vec I=vec x and vec l=vec (-y)
The cross product Idl×l will have a direction 
vec x×vec(-y)=-vec z
 
 
2 years ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies


Course Features

  • 101 Video Lectures
  • Revision Notes
  • Previous Year Papers
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Test paper with Video Solution


Course Features

  • 110 Video Lectures
  • Revision Notes
  • Test paper with Video Solution
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Previous Year Exam Questions


Ask Experts

Have any Question? Ask Experts

Post Question

 
 
Answer ‘n’ Earn
Attractive Gift
Vouchers
To Win!!! Click Here for details