In a certain region static electric and magnetic fields exist. The magnetic field is given by B = B₀(i + 2 j - 4 k). If a test charge moving with a velocity = ₀(3 i - j + 2 k) experiences no force in that region, then the electric field in the region, in SI units, is:

(A) E = - ₀ B₀(3 i - 2 j - 4 k)

(B) E = - ₀ B₀(i + j + 7 k)

Magnetic Effects of Current and Magnetism: JEE Main 2017 Physics question

JEE Main 2017 · 8 Apr, Morning shift · Q7741

JEE Main 20178 Apr, Morning shiftPhysicsMediumMagnetic Effects of Current and Magnetism165× since 2002

In a certain region static electric and magnetic fields exist. The magnetic field is given by

\overrightarrow B = {B_0}\left( {\widehat i + 2\widehat j - 4\widehat k} \right)

. If a test charge moving with a velocity

\overrightarrow \upsilon = {\upsilon _0}\left( {3\widehat i - \widehat j + 2\widehat k} \right)

experiences no force in that region, then the electric field in the region, in SI units, is :

JEE Main 2017 Magnetic Effects of Current and Magnetism Question with Solution (8 Apr Morning shift, Q7741) | JEE Arc

JEE Main 2017 · 8 Apr, Morning shift · Q7741

JEE Main 20178 Apr, Morning shiftPhysicsMediumMagnetic Effects of Current and Magnetism165× since 2002

In a certain region static electric and magnetic fields exist. The magnetic field is given by

\overrightarrow B = {B_0}\left( {\widehat i + 2\widehat j - 4\widehat k} \right)

. If a test charge moving with a velocity

\overrightarrow \upsilon = {\upsilon _0}\left( {3\widehat i - \widehat j + 2\widehat k} \right)

experiences no force in that region, then the electric field in the region, in SI units, is :