When a current carrying conductor is placed in a magnetic field, it experiences a mechanical force. What should be the angle between the magnetic field and the length of the conductor so that the force experienced is:

(i) Zero

(ii) Maximum?

Why is it not advisable to use a piece of copper wire as fuse wire in an electric circuit?

Two metallic blocks P and Q having masses in ratio 2 : 1 are supplied with the same amount of heat. If their temperatures rise by same degree, compare their specific heat capacities.

Why does stone lying in the sun get heated up much more than water lying for the same duration of time?