Bihar Board Physics Exam 2025 : Objective Type Questions With Answer
1. Electric Field lines provide information about :
( A ) Field strength
( B ) Direction
( C ) Nature of charge
( D ) all of these
Ans – ( D )
2. The law, governing the force acting between two electric charge is known as :
( A ) Ampere’s law
( B ) Ohm’s law
( C ) Faraday’s law
( D ) Coulomb’s law
Ans – ( D )
3. Quantisation of charge indicates that :
( A ) Change, which is a fraction of charge on an electron, is not possible
( B ) A charge can not be destroyed
( C ) Charge exists on particles
( D ) There exists a minimum permissible charge on a particle
Ans – ( A )
4. S I. unit of electric dipole is
( A ) CN
( B ) Cm
( C ) C
( D ) C/m
Ans – ( B )
5 Which of the following has unit volt/metre ?
( A ) electric flux
( B ) electric potential
( C ) electric capacity
( D ) electric field
Ans – ( D )
6. When a body is charged, it’s mass
( A ) Increase
( B ) Decrease
( C ) Remains
( D ) May increase or decrease
Ans – ( D )
7. Electrostatic Field is
( A ) Conservative
( B ) Non conservative
( C ) Somewhere conservative and somewhere non conservative
( D ) None of these
Ans – ( A )
8. Coulombian Force is
( A ) Central Force
( B ) Electric Force
( C ) Both ( A ) and ( B )
( D ) None of these
Bihar Board Physics Exam 2025
Ans – ( C )
9. In the uniform electric field along X-axis, then equipotential is along :
( A ) XY – plane
( B ) XZ – plane
( C ) YZ – plane
( D ) anywhere
Ans – ( C )
10. The unit of intensity of electric field is :
( A ) metre/volt
( B ) joule/Newton
( C ) coulomb/Newton
( D ) Newton/coulomb
Ans – ( D )
11. When a soap bubble is charged, it’s radius:
( A ) Increase
( B ) Decrease
( C ) Remains the same
( D ) Become Zero
Ans – ( A )
12. When a body becomes negatively charged, it’s mass
( A ) Decrease
( B ) Increase
( C ) Remains the same
( D ) Non of these
Ans – ( B )
11. When placed in a uniform field, a dipole experiences :
( A ) A net force
( B ) A torque
( C ) Both ( A ) and ( B )
( D ) None of these
Ans – ( B )
12. The belt of Van de Graaf generation gets charge by
( A ) Corona discharge
( B ) Induction
( C ) Electrification
( D ) Non of these
Ans – ( A )
13. When velocity of charged body increases, it’s change :
( A ) May increase
( B ) May decrease
( C ) May ( A ) or ( B )
( D ) Does not change
Ans – ( D )
14. In a uniform electric field, force per unit change defines :
( A ) Electric intensity
( B ) Gravitational intensity
( C ) Electric Potential
( D ) None of these
Ans – ( D )
15. Which of the following is Vector ?
( A ) Change
( B ) Electric Field intensity
( C ) Capacity
( D ) None of these
Ans – ( B )
