Bihar Board Physics Objective Question
Bihar Board Exam 2024 Question
1. A soap bubble is given a negative change, then it’s radius
( A ) Increase
( B ) Decrease
( C ) Remains unchanged
( D ) May increases or decreases
Ans – ( A )
2. Metallic sphere of radius R is charged to potential V. Then charge q is proportional to
( A ) V
( B ) R
( C ) Both ( A ) and ( B )
( D ) None of these
Ans – ( C )
3. If sphere of bad conductor is given change then it is distributed on :
( A ) Surface
( B ) Only inside the surface
( C ) Inside the surface
( D ) None of these
Ans – ( D )
4. In which of the following forms is the energy stored in a capacitor ?
( A ) Change
( B ) Potential
( C ) Capacitance
( D ) Electric Field
Ans – ( D )
5. The potential gradient at which dielectric of the condenser just gets punctured, is known as :
( A ) Dielectric constant
( B ) Dielectric strength
( C ) Dielectric resistance
( D ) Dielectric number
Ans – ( B )
6. Which of the laws gives the force between two charges at rest ?
( A ) Gauss theorem
( B ) Kirchhoff’s rules
( C ) Coulomb’s law
( D ) Faraday’s law
Ans – ( C )
7. If the distance between two charged particles is doubled the force between them
( A ) Gets doubled
( B ) Gets halved
( C ) Gets quardrupled
( D ) Become one-fourth
Ans – ( D )
8. An electric dipole is placed parallel to X-axis in an electric field. The force on it will be
( A ) Zero
( B ) Normal to X-axis
( C ) Along X-axis
( D ) None of these
Ans – ( D )
Bihar Board Physics Objective Question
9. Of distance of two charges from origin is increased then the value of electrostatic force :
( A ) Increase
( B ) Decrease
( C ) Remain unchanged
( D ) May increase or decrease
Ans – ( D )
10. Charges A and B attract each other. Charges B and V attract each other :
( A ) Repel each other
( B ) Will attract each other
( C ) Will Not affect each other
( D ) More information needed
Ans – ( A )
11. An electric dipole is enclosed by a surface. The total Electric flux over the surface is
( A ) Infinite
( B ) Zero
( C ) Dependent on the charges
( D ) Dependent upon the position of the dipole
Ans – ( B )
12. The cause of the charging a body is
( A ) Transfer of protons
( B ) Transfer of neutrons
( C ) Transfer of electrons
( D ) Transfer of both protons and neutrons
Ans – ( C )
13. Two copper spheres of the same radius, one solid and the other hollow, are charged to the same potential. Which will have more charge ?
( A ) Solid sphere
( B ) Hollow sphere
( C ) Both will have an equal change
( D ) None of these
Ans – ( C )
14. A parrot comes and sits on a bare hegh power line. It will
( A ) Experience a mild shock
( B ) Experience a strong shock
( C ) Get killed instantaneous
( D )Not be affected practically
Ans – ( D )
15. Van de Graff generator is used to :
( A ) Store electric energy
( B ) Build up High voltage of few million volts
( C ) Decelerate change particle like electrons
( D ) Both ( A ) and ( B ) are correct
Ans – ( B )
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