Magnetism and Matter — Physics STD 12 Science — Question

What will be the path of a charged particle moving along the direction of a uniform magnetic field?

Is the dispersion power of crown glass more or less than that of flint glass? Write.

A circular loop of radius 4.0cm is placed in a horizontal plane and carries an electric current of 5.0A in the clockwise direction as seen from above. Find the magnetic field:

1. At a point 3.0cm above the centre of the loop.
2. At a point 3.0cm below the centre of the loop.

What is a Gaussian surface?

Is work done by a battery always equal to the thermal energy developed in electrical circuit? What happens if a capacitor is connected in the circuit?

Standing in the sun is more pleasant on a cold winter day than standing in shade. Is the temperature of air in the sun considerably higher than that of the air in shade?

Write the relationship between angle of incidence ‘i’, angle of prism ‘A’ and angle of minimum deviation for a triangular prism.

Is work done by a battery always equal to the thermal energy developed in electrical circuit? What happens if a capacitor is connected in the circuit?

When a forward bias is applied to a p-n junction, it

1. Raises the potential barrier.
2. Reduces the majority carrier current to zero.
3. Lowers the potential barrier.
4. None of the above.