List of top Physics Questions asked in VITEEE, NEET (UG)

The potential energy of a long spring when stretched by 2 cm is U. If the spring is stretched by 8 cm the potential energy stored in it is

The velocity $v$ of a particle at time $t$ is given by $v=at+\frac{b}{t+c}$ , where $a$, $b$ and $c$ are constants. The dimensions of $a$, $b$ and $c$ are, respectively,

When a charged particle moving with velocity $\vec{v}$ is subjected to a magnetic field of induction $\vec{B}$, the force on it is non-zero. This implies the :-

A photocell employs photoelectric effect to convert :-

Above Curie temperature :

A current of 5A is passing through a metallic wire of cross-sectional area $4\times10^{-6}m^2$ If the density of the charge carriers in the wire is 5 ? $10^{26}m^{-3}$, the drift speed of the electrons will be [e = 1.602 ? $10^{-19}C$]

The series combination of two capacitors shown in figure is connected across 1000V. The magnitude of the charges on the capacitors will be

Three resistances of values 2$\Omega$, 3$\Omega$ and 6$\Omega$ are to be connected to produce an effective resistance of 4$\Omega$ . This can be done by connecting

The resistance of a field coil measures 50$\Omega$ at 20?C and 65$\Omega$ at 70?C. The temperature coefficient of resistance is

In a tangent galvanometer, a current of 1A produces a deflection of 30?. The current required to produce a deflection of 60? is

A circular coil of radius 40 mm consists of 250 turns of wire in which the current is 20mA. The magnetic field in the center of the coil is $\mu =4\pi?10^{-7}Hm^{-1}$

RMS value of AC is _______ of the peak value

A new system of units is evolved in which the values of $\mu_0$ and $\epsilon_0$are 2 and 8 respectively. Then the speed of light in this system will be

A potential difference of 300 V is applied to a combination of 2.0µF and 8.0µF capacitors connected in series. The charge on the 2.0µF capacitor is:

Two point charges \( +4 \mu C \) and \( -2 \mu C \) are separated by a distance of 1 m. Then, the distance of the point on the line joining the charges, where the resultant electric field is zero, is (in metre):

Figure shows a triangular array of three point charges. The electric potential \( V \) of these source charges at the midpoint \( P \) of the base of the triangle is:

A current of 5A is passing through a metallic wire of cross-sectional area \( 4 \times 10^{-6} \, m^2 \). If the density of the charge carriers in the wire is \( 5 \times 10^{22} \, m^{-3} \), the drift speed of the electrons will be:

The series combination of two capacitors shown in the figure is connected across 1000V. The magnitude of the charges on the capacitors will be:

Three resistances of values 2Ω, 3Ω, and 6Ω are to be connected to produce an effective resistance of 4Ω. This can be done by connecting:

The resistance of a field cold measures 50Ω at 20°C and 53Ω at 70°C. The temperature coefficient of resistance is:

The electrolyte used in Leclanché cell is:

In a tangent galvanometer, a current of 1A is required to produce a deflection of 60° is:

A circular coil of radius 40 cm consists of 250 turns of wire in which the current is 20mA. The magnetic field in the center of the coil is:

The RMS value of AC is:

The LCR circuit becomes extremely sharp in resonance when: