CBSE BOARD XII, asked by nawfalnizam14, 3 months ago

Two point charges qA = 3 μC and qB = −3 μC are located 20 cm apart in vacuum.

(a) What is the electric field at the midpoint O of the line AB joining the two charges?

Answers

Answered by deepaktandan199
0

a) The situation is represented in the given figure. O is the mid-point of line AB.

Distance between the two charges, AB = 20 cm

∴ AO = OB = 10 cm

Net electric field at point O = E

Electric field at point O caused by +3μC charge,

Where, 0 = Permittivity of free space and 1/4πεo=9×109 Nm2C−2

Therefore,

Magnitude of electric field at point O

Therefore, the electric field at mid-point O is 5.4 × 106 N C−1 along OB.

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