Question

A charged particle with velocity $2\times {10}^{3}m/s$ passes undeflected through electric and magnetic field. Magnetic field is 1.5 tesla. The electric field intensity would be

• A. $2\times {10}^{3}N/C$
• B. $1.5\times {10}^{3}N/C$
• C. $3\times {10}^{3}N/C$
• D. $4/3\times {10}^{-3}N/C$

Answer 1

Answer: (C)

$3\times {10}^{3}N/C$

$E=vB$
$=2\times {10}^3\times 1.5$
$=3\times {10}^{3}V/m$