Around a current carrying wire, there is a ___.
chemical energy
magnetic field
potential energy
kinetic energy
A current carrying conductor creates a magnetic field around it. This was observed by Oersted.
Choose the correct option concerning magnetic forces and fields?
I. The magnetic field lines due to a current-carrying wire radiate away from the wire.
II. A charged particle can move through a magnetic field without feeling a magnetic force.
III. The kinetic energy of a charged particle can be increased by a magnetic force.
Which of the following energy change involves frcitional force ?
(a) chemical energy to heat energy
(b) kinetic energy to heat energy
(c) potential energy to sound energy
(d) chemical energy to kinetic energy