NEET 2023 Question Paper Mock Test

A $12\text{V},60\text{W}$ lamp is connected to the secondary of a step-down transformer, whose primary is connected to AC mains of $220\text{V}$. Assuming the transformer to be ideal, what is the current in the primary winding?

An electric dipole is placed at an angle of $30^{\circ }$ with an electric field of intensity $2\times 10^5{\text{N C}}^{-1}$. It experiences a torque equal to $4\text{Nm}$. Calculate the magnitude of charge on the dipole, if the dipole length is $2\text{cm}$.

A vehicle travels half the distance with speed $v$ and the remaining distance with speed $2v$. Its average speed is:

Let a wire be suspended from the ceiling (rigid support) and stretched by a weight $W$ attached at its free end. The longitudinal stress at any point of cross-sectional area $A$ of the wire is:

If ${\oint }_S\vec{E}\cdot d\vec{S}=0$ over a surface, then: