List the factors on which the magnetic field produced by a current carrying straight conductor
depends. State the rule which gives the direction of its magnetic field. Draw the pattern of magnetic
field lines due to a current carrying conductor.
if energy can neither created nor destroyed, explain with an example why we should worry about our energy resources?
Answers
Amount of current flowing through the conductor is the only factor for a straight current carrying conductor and if you wound the wire on a soft iron core it will increase the magnetic field.
Right hand thumb rule will give the direction of magnetic field through a straight current carrying conductor.
If energy can neither be destroyed nor be created then we should worry about our resources as energy transforms from one form to another where sometimes the transformed energy might become useless. Ex. If you turn on a bulb
Answer:
the reason behind it is that energy is converted into non-usable forms. fossil fuels like coal, petroleum etc. ...
we should worry about such sources because these sources of energy are getting depleted and sooner or late,
will no longer be available for us.