A mobile phone is one of the many electrical appliances, which makes use of both the chemical and magnetic effects of an electric current. Can you describe how the mobile phone makes use of these effects?
Important Questions on Electric Current and its Effects
When four identical electric bulbs are connected as shown in figure A, they glow with normal brightness. Which of the following statements is correct when these bulbs are connected as shown in figure B?
Give reasons for the following.
Birds do not get electrocuted when they perch on power lines.
Give reasons for the following:
Nichrome wire is used as a heating element instead of copper wire.
Observe the given diagram and answer the question that follows.
Which effect of electricity is used?
Observe the given diagram and answer the question that follows.
How is the temperature adjusted when we rotate the knob while using an electric iron on different fabrics?
Observe the given diagram and answer the question that follows.
What will happen if the brass layer and iron layer is interchanged in their placement in the bimetallic strip?
