. Who among these recently was sworn in as the

In an electric motor, energy is transformed from:

Gauss's law is applicable only to:

Energy that is produced commercially from coal is called –

Which of the following is not a vector quantity?

‘Lubb-dupp’ sound is produced due to the action of

Two sound waves have frequencies 256 Hz and 260 Hz. The beat frequency is:

What is the rate of change of momentum called?

Which of the following materials behaves as a dielectric?

Planck’s constant has dimensions equivalent to which of the following?

What is the main principle behind the working of an electric motor?