CBSE Class 12 Electric Charges and Fields Multiple Choice Questions with Answers. MCQ Questions Class 12 Electric Charges and Fields with Answers Is Prepared Based on Latest Exam Pattern. Students can solve NCERT Class 12 Electric Charges and Fields MCQs with Answers to know their preparation level.
Students who are searching for NCERT MCQ Questions for Class 12 Electric Charges and Fields with Answers are compiled here to get good practice on all fundamentals. Know your preparation level on MCQ Questions for Class 12 Electric Charges and Fields with Answers. You can also verify your answers from our provided MCQ Class 12 Electric Charges and Fields with Answers. So, ace up your preparation with MCQ of Class 12 Physics Examinations.
MCQ Questions Class 12 Electric Charges and Fields with Answers - Set - 1
Question 1:
Which of the following method is an indirect method of charging:
(a) charging by induction
(b) charging by physical contact
(c) charging by friction
(d) none of these.
Correct Answer – (A)
Question 2 :
Two charges 10 pC and 5 pC are placed 20 cm apart. The ratio of Coulomb’s force experienced by there is:
(a) 2 : 5
(b) 1 : 1
(c) √3 = √7
(d) None of these
Correct Answer – (B)
Question 3 :
When two charged spheres are connected with a wire, the electric charge on them is shared:
(a) inversely as their capacity
(b) equally
(c) in proportional to their capacity
(d) None of these.
Correct Answer – (B)
Question 4 :
When distance between two charges is reduced to one-half of the original distance, the force between them will remain the same if one of the charges is made:
(a) one fourth
(b) four times
(c) double
(d) one-halftimes.
Correct Answer – (A)
Question 5 :
If electric flux through a closed surface is zero. It means that:
(a) the net charge inside the surface is zero.
(b) the electric field is necessarily zero at all points on the surface.
(c) no charge exists inside the surface.
(d) no charge exists outside the surface.
Correct Answer – (A)
MCQ Questions Class 12 Electric Charges and Fields with Answers
Question 6 :
The surface charge density oil the copper sphere is σ. The electric field strength on the surface of Sphere of radius r is:
(a) σ/2
(b) σ
(c) σ/2ε0σ2ε0
(d) σ/ε0
Correct Answer – (D)
Question 7 :
Two point charges each of 20 µC are placed 50 cm apart in air. What is the electric field intensity at the mid point on the line joining the centre of two point charges?
(a) 5 × 106 NC-1
(b) 18 × 106 NC-1
(c) Zero
(d) None of these
Correct Answer – (C)
Question 8 :
A unit Coulomb charge is one which when placed in air at a distance of 1 m from an equal and similar charge repel it with a force of
(a) 9 × 109 N
(b) 1 N
(c) 1 dyne
(d) None of these.
Correct Answer – (A)
Question 9 :
Static electricity is produced by
(a) induction only
(b) friction
(c) chemical reaction only
(d) friction and induction both.
Correct Answer – (B)
Question 10 :
In comparison With the electrostatic force between two electrons, the electrostatic force between two protons is:
(a) greater
(b) smaller
(c) zero
(d) same.
Correct Answer – (D)
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