QUESTION Two (a) Figure 3 shows a rod of lengthl which has a uniform positive charge per unit length å and a total charge q. It lies horizontally on the x-axis. Evaluate the electric field due to this rod at a point P on the x-axis if the near end of the rod is at a distance a from P. dx E Figure 3 (b) In Figure 4, a proton is released from rest at a point A in a uniform electric field that has a magnitude 8.0 x 104 V/m. The proton undergoes a displacement of 0.5 m to a point B in the direction of E. Find the speed of the proton after completing the 0.5 m displacement. Figure 4
QUESTION Two (a) Figure 3 shows a rod of lengthl which has a uniform positive charge per unit length å and a total charge q. It lies horizontally on the x-axis. Evaluate the electric field due to this rod at a point P on the x-axis if the near end of the rod is at a distance a from P. dx E Figure 3 (b) In Figure 4, a proton is released from rest at a point A in a uniform electric field that has a magnitude 8.0 x 104 V/m. The proton undergoes a displacement of 0.5 m to a point B in the direction of E. Find the speed of the proton after completing the 0.5 m displacement. Figure 4
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Transcribed Image Text:QUESTION TWO
(a) Figure 3 shows a rod of length l which has a uniform positive charge per
unit length 2 and a total charge q. It lies horizontaly on the x-axis. Evaluate the
electric field due to this rod at a point P on the x-axis if the near end of the rod
is at a distance a from P.
dx
E
Figure 3
(b) in Figure 4, a proton is released from rest at a point A in a uniform electric
field that has a magnitude 8.0 x 10* V/m. The proton undergoes a
displacement of 0.5 m to a point B in the direction of E. Find the speed of the
proton after completing the 0.5 m displacement.
Figure 4
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