Class 12 ISC Physics Electric Charges and Field Board Questions
Here we provide Class 12 Physics important notes,board questions and predicted questions with Answers for chapter Electric Field. These important notes,board questions and predicted questions are based on ICSE board curriculum and correspond to the most recent Class 12 Physics syllabus. By practising these Class 12 materials, students will be able to quickly review all of the ideas covered in the chapter and prepare for the Class 12 Board examinations as well as other entrance exams such as NEET and JEE.
Q1
Show that intensity of electric field E at a point in broadside on position is given by E =
(1/(4πε0 )) P/((r2+ l2))3/2, where the terms have their
usual meaning.
solutions
solutions
Q2
A charged oil drop weighing 1.6 x 10-15 N is found to remain suspended in a uniform
electric field
of intensity 2 x 10-3 NC-1. Find the charge on the drop.
solutions
solutions
Q3
Two point charges Q1 = 400 μC and Q2 = 200 μC are kept fixed , 60 cm apart in
vacuum. Find intensity
of the electric field at midpoint of the line joining Q1 and Q2 .
solutions
solutions
Q4
Maximum torque acting on an electric dipole of moment 3 x 10-29 Cm in a uniform electric
field E is
6 x 10-25 Nm. Find E.
solutions
solutions
Q5
Intensity of electric field at a perpendicular distance of 0.5 m from an infinitely long line
charge having linear charge density (λ) is 3.6 x 103 V m-1 . Find the value of
(λ)
solutions
solutions
Q6
Obtain expression for intensity of electric field a point in end on position i.e. axial position of
an electric dipole
solutions
solutions
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