Q 1164612555.     A long curved conductor carries a current barI . (barI is a vector ). A small current element of length `dl` , on the wire induces a magnetic field at a point, away from the current element. If the position vector between the current element and the point is `r` , making an angle with current element then, the induced magnetic field density; `dB` (vector) at the point is (`mu_0permeability` of free space).

A

`(mu_0Ibar(dl)xxbarr)/(4pir)`perpendicular to the current element bar(dl)

B

`(mu_0Ibar(dl))/(r)` perpendicular to the plane containing the current element and position vectorbarr

C

`(mu_0Ibar(dl))/(4pir)` perpendicular to the plane containing the current element and position vectorbarr

D

`(mu_0barIbar(dl)xxbarr)/(4pir^2)`perpendicular to the current element bar(dl)

HINT

Use Biot–Savart law

Today's Score

0
Success Rate: NAN %

Practice & Test

Sr. No.SubjectTagCorrectRecorded Answer