MEDIUM
12th ICSE
IMPORTANT
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Define one coulomb. How many electrons will have a total charge of 1 coulomb?

Important Questions on Electric Charges and Fields

EASY
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 1 - Electric Charges and Fields>QUESTIONS>Q 9
What is meant by 'elementary charge'? What is its value?
EASY
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 1 - Electric Charges and Fields>QUESTIONS>Q 10
Which has more electrons, Fe or Fe+++? Cl or Cl-?
EASY
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 1 - Electric Charges and Fields>QUESTIONS>Q 11
State the unit of electric permittivity in terms of SI units.
HARD
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 1 - Electric Charges and Fields>QUESTIONS>Q 12
Write the relation between relative permittivity εr and the absolute permittivity ε of a dielectric medium.
EASY
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 1 - Electric Charges and Fields>QUESTIONS>Q 13
Define 'dielectric constant' of a medium in terms of force between electric charges.
EASY
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 1 - Electric Charges and Fields>QUESTIONS>Q 14
What is the dimensional formula for 14π ε0?
EASY
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 1 - Electric Charges and Fields>QUESTIONS>Q 15
A,B and C are three charged bodies. If A and B repel each other and A attracts C, what is the nature of the force between B and C?
EASY
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 1 - Electric Charges and Fields>QUESTIONS>Q 16
Two large conducting spheres carrying charges q1 and q2 are brought close to each other. Is the electrostatic force between them exactly given by14πε0q1 q2r2 , where r is the distance between their centres?