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

Q. The charge per unit length of four quadrant of the ring of radius R is 2 lambda, -2 lambda, 1 lambda and -1 lambda respectively. The electric field at the centre is (a) - (lambda/2pie epsilon R) i cap (b) (lambda/2 pie epsilon R) j cap (c) (square root (2)lambda/4 pie epsilon R) j cap (d) None of the above

Q. The charge per unit length of four quadrant of the ring of radius R is 2 lambda, -2 lambda, 1 lambda and -1 lambda respectively. The electric field at the centre is


(a) - (lambda/2pie epsilon R) i cap


(b) (lambda/2 pie epsilon R) j cap


(c) (square root (2)lambda/4 pie epsilon R) j cap


(d) None of the above

Grade:12

1 Answers

Prajwal kr
49 Points
8 years ago

First draw the net force of electric field due to each segment of ring. Every sector of charge q(=lambda) will exert a net force F in the direction of 45 degrees with the x-axis.(The +ve x-axis is towards your right>>>)

The net force after each force cancels is 2Fcos45 along negative x-axis.

Therefore A) is the answer.

 

 

 

Think You Can Provide A Better Answer ?

Provide a better Answer & Earn Cool Goodies See our forum point policy

ASK QUESTION

Get your questions answered by the expert for free