Question:
An electric current can produce
(a) heating effect
(b) chemical effect
(c) magnetic effect
(d) chemical, heating and magnetic effects
Solution:
(d) When an electric current is passed through a conducting solution, it causes chemical reactions. The resulting effect is called chemical effect of
current.
When an electric current is passed through a bulb, its filament gets heated to a high temperature and bulb starts glowing. The resulting effect is
heating effect of current. Whenever an electric current te passed through a circuit, a magnetic field is produced around it. The resulting effect is
magnetic effect of current. Thus, an electric current can produce chemical, heating and magnetic effects.