railway RRB Technician Grade 1 Mock Test 2024 Physics Electric Potential Electric Potential and Electric Potential Energy
When electrons, accelerated through a potential difference pass through a medium containing electric field of intensity 20 V cm–1 and magnetic field of intensity 1 T, these go undeviated. The velocity of the electrons is
1
2 × 105 ms–1
2
2 × 103 ms–1
3
2 × 103 km s–1
4
none of these