The parallel plate capacitor has potential difference of 100 V and separation between the plate is 1 m m . An electron is projected along x axis in between the plates. If the electron comes out of the

Question

The parallel plate capacitor has potential difference of $100 V$ and separation between the plate is $1 m m$ . An electron is projected along $x$ axis in between the plates. If the electron comes out of the plates along the $x$ axis undeviated then the magnitude and direction of magnetic field that must be applied between the plates : (particle is projected with a velocity of $10^{5} m / s$ along $x$ axis)

TestHub · Accepted Answer

F e l e c t r i c = F m a g e E = e V × B B = E / V = P . D d i s t a n c e × s p e e d = 100 V 1 × 1 0 – 3 × 1 0 5 m / s = 1 T Electric force is along + k ^ direction then magnetic force must be in – k ^ direction. There fore B must be in + j ^ direction.

Physics - Magnetism Question with Solution | TestHub

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