Advertisements
Advertisements
Question
Name two electric devices for each where
- heating effect of current is used and
- magnetic effect of current is used.
Advertisements
Solution
- Current heating devices are used room heaters and geysers.
- Cranes and electric bells employ the magnetic influence of current.
APPEARS IN
RELATED QUESTIONS
Give Scientific reason
In the electric equipment producing heat e.g. iron, electric heater, boiler, toaster etc, an alloy such as Nichrome is used, not pure metals.
Identify the figure and give its use.
Statement 1 : Electric current ( flow of electrons ) creates heat in the resistor.
Statement 2 : Heat in the resistor is created according to the rule of energy conservation.
Explain Statement 1 with the help of Statement 2.
What is used to turn off the sudden increase in current in the electrical circuit of the house nowadays?
Explain the application of heating effect of electric current in an electric bulb with a diagram.
An electric component used as a safety device is electric circuit is ______.
Explain the working of an electric fuse.
What is a trip switch?
Define the following:
Electrolyte
In a set up the students coated iron nails with zinc metal and noted that, iron nails coated with zinc prevents rusting. They also observed that zinc initially acts as a physical barrier, but an extra advantage of using zinc is that it continues to prevent rusting even if the layer of zinc is damaged. Name this process of rust prevention and give any two other methods to prevent rusting.
