JEE Physics - MCQ Practice Questions
Practice free JEE Physics multiple-choice questions with detailed answers and explanations. Perfect for competitive exam preparation.
863 questions | 100% Free
A charge distribution creates potential V(r) = kr² where k is constant. What is the electric field at distance r?
Two parallel conducting plates have surface charge density σ and -σ respectively. What is the electric field in the region between the plates?
A hollow conducting sphere of radius R has total charge Q. What is the surface charge density?
A parallel plate capacitor with plate area A and separation d is filled with dielectric constant κ. What is the capacitance?
Two point charges q₁ and q₂ are separated by distance r. If they are moved to distance 2r apart, how does the interaction energy change?
A charged particle of mass m and charge q is projected perpendicular to a uniform electric field E. What is the trajectory?
Three capacitors of capacitance 2 μF, 3 μF, and 6 μF are connected in series across a 12 V supply. What is the charge on the 2 μF capacitor?
A uniformly charged infinite line with linear charge density λ creates an electric field at perpendicular distance r. What is E?
A point charge +q is placed at the origin. What is the electric potential at a distance r from the charge?
An electric dipole of dipole moment p is placed in a uniform electric field E at an angle θ to the field. What is the torque acting on the dipole?
A uniformly charged conducting sphere of radius R and total charge Q is surrounded by a concentric spherical shell. Using Gauss's law, what is the electric field at a distance r > R from the center?
The electric potential energy of a system of two point charges q₁ and q₂ separated by distance r is:
A conducting sphere of radius a is charged to potential V₀. What is the surface charge density on the sphere?
An electron is released from rest in a uniform electric field of magnitude E. After moving through a distance d, what is its kinetic energy?
Two identical conducting spheres have charges +Q and -Q respectively. They are brought into contact and then separated. What is the final charge on each sphere?
A spherical shell of radius R carries a uniformly distributed charge Q. What is the electric field inside the shell at distance r from the center (r < R)?
An electric field E = 100 V/m is applied between two parallel plates separated by distance d = 0.02 m. What is the potential difference between the plates?
A non-conducting infinite plane with uniform surface charge density σ produces an electric field. What is the magnitude of this field?
A charge +q is at position (0, 0) and charge -q is at (a, 0). At what point on the x-axis is the electric potential zero?
A conducting rod of length L is moving with velocity v perpendicular to a uniform magnetic field B. If the rod is in electrostatic equilibrium, what is the induced EMF?