EASY
Earn 100

The element of an electric iron is made of _______.

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Important Questions on Electric Current and Its Effects

MEDIUM
Science>Physics>Electric Current and Its Effects>Heating Effect of Electric Current
How does overload and short-circuit occur in an electric circuit ? Explain. What is the function of fuse during this situation?
EASY
Science>Physics>Electric Current and Its Effects>Heating Effect of Electric Current
Suggest any two measures to avoid overloading in domestic circuits.
EASY
Science>Physics>Electric Current and Its Effects>Heating Effect of Electric Current
At the time of short circuit, the electric current in the circuit:
MEDIUM
Science>Physics>Electric Current and Its Effects>Heating Effect of Electric Current

Differentiate between the following.

Heating effect and magnetic effect of current

EASY
Science>Physics>Electric Current and Its Effects>Heating Effect of Electric Current
Write an activity to demonstrate the heating effect of current.
EASY
Science>Physics>Electric Current and Its Effects>Heating Effect of Electric Current

Name the materials used for making:

(a) heating element of an electric heater

MEDIUM
Science>Physics>Electric Current and Its Effects>Heating Effect of Electric Current
Why is it necessary to have a fuse or MCB at our homes?
 
EASY
Science>Physics>Electric Current and Its Effects>Heating Effect of Electric Current
Why a fluorescent tube does not generate heat?
EASY
Science>Physics>Electric Current and Its Effects>Heating Effect of Electric Current
Which of these appliances does not work on magnetic effect of current?
EASY
Science>Physics>Electric Current and Its Effects>Heating Effect of Electric Current

Give reasons for the  following:

Nichrome wire is used as a heating element instead of copper wire.

EASY
Science>Physics>Electric Current and Its Effects>Heating Effect of Electric Current
An electric bulb works on the _____ effect of electric current.
EASY
Science>Physics>Electric Current and Its Effects>Heating Effect of Electric Current

Observe the given diagram and answer the question that follows.

Question Image

What will happen if the brass layer and iron layer is interchanged in their placement in the bimetallic strip? 

EASY
Science>Physics>Electric Current and Its Effects>Heating Effect of Electric Current
Give the relationship between the amount of electric current passed and the heat produced.
EASY
Science>Physics>Electric Current and Its Effects>Heating Effect of Electric Current
Can we use the same fuse in a geyser and a television set? Explain.
EASY
Science>Physics>Electric Current and Its Effects>Heating Effect of Electric Current
Flow of large current due to direct contact of a live and a neutral wire is called _____ (short-circuit/ overload).
HARD
Science>Physics>Electric Current and Its Effects>Heating Effect of Electric Current
Why are Compact Fluorescent Lamps (CFLs) preferred over electric bulbs? 
MEDIUM
Science>Physics>Electric Current and Its Effects>Heating Effect of Electric Current

Observe the given diagram and answer the question that follows.

Question Image

How is the temperature adjusted when we rotate the knob while using an electric iron on different fabrics? 

EASY
Science>Physics>Electric Current and Its Effects>Heating Effect of Electric Current

Observe the given diagram and answer the question that follows.

Question Image

Which effect of electricity is used?

EASY
Science>Physics>Electric Current and Its Effects>Heating Effect of Electric Current
Electric bulb's filament is made of _____ wire.
EASY
Science>Physics>Electric Current and Its Effects>Heating Effect of Electric Current
Name any two effects of electric current.