KCET 2022 Physics Solved Paper

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Question : 20 of 60

Marks: +1, -0

A proton moves with a velocity of 5×106

∧

j

ms−1 through the uniform electric field,

→

E

=4×106[2

∧

i

+0.2

∧

j

+0.1

∧

k

]Vm−1 and the uniform magnetic field

→

B

=0.2[

∧

i

+0.2

∧

j

+

∧

k

]T. The approximate net force acting on the proton is

2.2×10−13N
20×10−13N
5×10−13N
none

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