Electric field due to an infinite line of charge, as shown in figure (I), a point P at a distance r from the line is E. If wire is folded at point A, so that both parts lie alongside as shown in figure (II), then express electric field at P in vector form.

Question

Electric field due to an infinite line of charge, as shown in figure (I), a point P at a distance r from the line is E. If wire is folded at point A, so that both parts lie alongside as shown in figure (II), then express electric field at P in vector form. (A) (E/2) hati+(E/2) hatj (B) E hati+E hatj (C) √2 E hati+√2 E hatj (D) (E/√2) hati+(E/√2) hatj

Tardigrade Admin · Accepted Answer

Correct answer is (a) (E/2) hati+(E/2) hatj

Q. Electric field due to an infinite line of charge, as shown in figure (I), a point $P$ at a distance $r$ from the line is $E$ . If wire is folded at point $A$ , so that both parts lie alongside as shown in figure (II), then express electric field at $P$ in vector form.

$\frac{E}{2} \hat{i} + \frac{E}{2} \hat{j}$

$E \hat{i} + E \hat{j}$

$2 E \hat{i} + 2 E \hat{j}$

$\frac{E}{2} \hat{i} + \frac{E}{2} \hat{j}$

Correct answer is (a) $\frac{E}{2} \hat{i} + \frac{E}{2} \hat{j}$

Q. Electric field due to an infinite line of charge, as shown in figure (I), a point P at a distance r from the line is E. If wire is folded at point A, so that both parts lie alongside as shown in figure (II), then express electric field at P in vector form.

2E​i^+2E​j^​

Ei^+Ej^​

2​Ei^+2​Ej^​

2​E​i^+2​E​j^​

Correct answer is (a) 2E​i^+2E​j^​

Q. Electric field due to an infinite line of charge, as shown in figure (I), a point $P$ at a distance $r$ from the line is $E$ . If wire is folded at point $A$ , so that both parts lie alongside as shown in figure (II), then express electric field at $P$ in vector form.

$\frac{E}{2} \hat{i} + \frac{E}{2} \hat{j}$

$E \hat{i} + E \hat{j}$

$2 E \hat{i} + 2 E \hat{j}$

$\frac{E}{2} \hat{i} + \frac{E}{2} \hat{j}$

Correct answer is (a) $\frac{E}{2} \hat{i} + \frac{E}{2} \hat{j}$