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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > Two identical particles having the same mass m and charges +q and -q seperated by a distance d enter a uniform magnetic field B directed perpendicular to paper inwards with speeds v1 and v2 as shown in figure. The particles will not collide if

Two identical particles having the same mass m and charges +q and -q seperated by a distance d enter a uniform magnetic field B directed perpendicular to paper inwards with speeds v1 and v2 as shown in figure. The particles will not collide if

A small block of mass m An electron is accelerated from rest through a potential difference V. This electron experiences a force F in a uniform magnetic field. On increasing the potential difference to V' having charge q the force experienced by the electron in the same magnetic field becomes 2F. Then the ratio (V'/V) is equal to