EASY
12th ICSE
IMPORTANT
Earn 100

Consider the situation shown in the figure. What are the signs of q1 and q2?

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Important Questions on Electric Charges and Fields

MEDIUM
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 1 - Electric Charges and Fields>QUESTIONS>Q 1
Explain the meaning of the statement “electric charge of a body is quantised.” Why can we ignore quantization of electric charge when dealing with large charges?
HARD
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 1 - Electric Charges and Fields>QUESTIONS>Q 2
State and explain: the law of conservation of charges, with examples.
HARD
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 1 - Electric Charges and Fields>QUESTIONS>Q 2

State and explain: the principle of superposition as applied to electrostatic forces on a charge due to a number of charges.

HARD
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 1 - Electric Charges and Fields>QUESTIONS>Q 3
State Coulomb’s law in electrostatics. Express it in SI units. Mention two similarities and two dissimilarities between electrostatic and gravitational interactions.
HARD
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 1 - Electric Charges and Fields>QUESTIONS>Q 4
Express Coulomb’s law in electrostatics in vector form. What is the importance of the vector form of the law?
HARD
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 1 - Electric Charges and Fields>QUESTIONS>Q 5
Derive an expression for the intensity of electric field at a point distance r from a point charge q.
HARD
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 1 - Electric Charges and Fields>QUESTIONS>Q 6
Obtain an expression for intensity of electric field in end on position, i.e., axial position of an electric dipole.
HARD
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 1 - Electric Charges and Fields>QUESTIONS>Q 7
With the help of a labelled diagram, obtain an expression for the electric field intensity E at any point P on the equatorial line (broad-side-on position) of an electric dipole.