NDA || Physics || Quiz

Find the equivalent resistance between A and B

A 10 V source was charging a 12 μF capacitor. After charging, the source was removed, and an inductor of inductance 3× 10^-4 H was connected. Find the current flowing across the inductor.

Find the magnetic moment of a magnet whose mass in 70 gm and the density of the material is 3500 kg/m³. It produces a magnetization of 3 × 10⁴ A/m.

A charge of 35.4 μC is kept at the center of a hollow sphere of radius 28 cm. Find the electric flux density through the surface of the hollow sphere.

A tuning fork of frequency 256 Hz makes 32 vibrations. Find the distance travelled by the sound in air. (v_air = 320 m/s)

Two particles P and Q are moving on a circle. At a certain instant of time both the particles are diametrically opposite and P has tangential acceleration 8 m/s² and centripetal acceleration 5 m/s² whereas Q has only centripetal acceleration of 1 m/s². At that instant acceleration (in m/s²) of P with respect to Q is:

The energy of a hydrogen atom in the ground state is - 13.6eV. The energy of a He⁺ion in the first excited rate will be

When light travels from one medium to the other of which the refractive index is different, then which of the following will change?

The velocity of heat radiation in vacuum is

Which of the following is an isothermal process?