Question 8: NCERT Class 12th Physics: Chapter 1 – Electric Charges And Fields
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 AS joining the two charges?
(b)If a negative test charge of magnitude 1.5 × 10-9 C is placed at this point, what is the force experienced by the test charge?
(a) Electric fields at O due to the charges at A and B are
In direction opposite to that of E i.e. along OA.
Check the complete chapter with solutions.
NCERT Solutions for 12th Class Physics: Chapter 1-Electric Charges And Fields