JEE Physics - MCQ Practice Questions
Physics is where JEE ranks are usually won or lost, since a single conceptual slip changes the whole answer. Questions here span mechanics, rotational motion, thermodynamics, waves and oscillations, electrostatics, current electricity, magnetism, optics, and modern physics. Numerical problems carry full derivations so you can see which step you skipped, not just which option was right.
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A conductor of arbitrary shape carries charge Q. Which is constant throughout the conductor?
A parallel plate capacitor has plate area A, separation d, and dielectric constant K. Its capacitance is:
Two identical conducting spheres carry charges +Q and -Q. When brought into contact, the charge on each sphere becomes:
A Gaussian surface encloses a net charge of 5 μC. The electric flux through the surface is:
Two capacitors C₁ and C₂ are connected in parallel across voltage V. The ratio of charges stored is:
What is the SI unit of electric dipole moment?
Two identical metal spheres with charges +Q and -Q are brought in contact and then separated. What is the final charge on each sphere?
A point charge q creates an electric potential of 100 V at distance 2 m. What is the potential at distance 8 m from the same charge?
What is the relationship between electric field E and potential V?
A Gaussian surface encloses charges 2q, -q, and 3q. What is the total electric flux through the surface?
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?
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:
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?