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igor_vitrenko [27]
3 years ago
6

An electron moving with a velocity v= 5.0 × 107 m/s i enters a region of space where perpendicular electric and a magnetic field

s are present. The electric field is E= 104 V/m j. What magnetic field will allow the electron to go through the region without being deflected?
Physics
1 answer:
liq [111]3 years ago
6 0

Answer:

The magnetic field that will allow the electron to go through the region without being deflected is 2\times 10^{-4}\ T.

Explanation:

Given that,

Velocity of the electron, v=5\times 10^7\ m/s

Electric field, E=10^4\ V/m\ j

We need to find the magnetic field that will allow the electron to go through the region without being deflected. It can be calculated as :

qE=qvB\ \sin\theta

Here, \sin\theta=90^{\circ}

E=vB\\\\B=\dfrac{E}{v}\\\\B=\dfrac{10^4}{5\times 10^7}\\\\B=2\times 10^{-4}\ T

So, the magnetic field that will allow the electron to go through the region without being deflected is 2\times 10^{-4}\ T.

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