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an electron enters a region with velocity v=4i + 6j m/s where an electric field where i= 2i + 3j +6k and magnetic field 2i + 3j t are present what is the magnitude of force experience by electron
Asked by archs370 | 27 May, 2021, 10:47: AM
Expert Answer
Velocity of electron , 
= ( 4 
+ 6 
) m/s
= ( 4 + 6 ) m/s Electric field , 
= ( 2 + 3 + 6 
) N/C
= ( 2 + 3 + 6 ) N/CMagnetic field Induction , 
= ( 2 + 3 ) T
= ( 2 + 3 ) T If we observe the given velocity and , we see that | |
and , we see that | | Hence ( × ) force is zero .
× ) force is zero . Hence only electric field is acting on electron to give force F = q , where q is charge on electron
, where q is charge on electronF = 1.602 × 10-19 × ( 2 + 3 + 6 ) N
+ 3 + 6 ) NMagnitude of force = 1.602 × 10-19 × { 2 × 2 + 3 × 3 + 6 × 6 }1/2 = 1.121 × 10-18 N
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