HARD
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An electric bulb is used to get light. Explain the working of an electric bulb with a suitable diagram.

Important Questions on Electric Current and Its Effects

EASY
Science>Physics>Electric Current and Its Effects>Symbols of Electronic Components
Write the circuit symbol of p-n-p transistor.
EASY
Science>Physics>Electric Current and Its Effects>Symbols of Electronic Components

Write the conventional symbol of the following component used in electric circuit diagram-

An electric cell

EASY
Science>Physics>Electric Current and Its Effects>Symbols of Electronic Components

In the given circuit diagram, identify the objects marked as 1, 2, 3.

Question Image

EASY
Science>Physics>Electric Current and Its Effects>Symbols of Electronic Components

Write the conventional symbol of the following component used in electric circuit diagram-

Electric bulb

MEDIUM
Science>Physics>Electric Current and Its Effects>Symbols of Electronic Components
Draw any four symbols of the components used in electric circuit.
EASY
Science>Physics>Electric Current and Its Effects>Symbols of Electronic Components

Write the conventional symbol of the following component used in electric circuit diagram-

A wire joint

EASY
Science>Physics>Electric Current and Its Effects>Symbols of Electronic Components
Give the electrical symbols for electric bulb.
EASY
Science>Physics>Electric Current and Its Effects>Symbols of Electronic Components
The use of a fuse is based on the _____ effect of current.
EASY
Science>Physics>Electric Current and Its Effects>Symbols of Electronic Components
Which of the following is not a circuit element?
EASY
Science>Physics>Electric Current and Its Effects>Symbols of Electronic Components
Name and describe the main components of an electric circuit.
EASY
Science>Physics>Electric Current and Its Effects>Symbols of Electronic Components
Which of the following is the symbol of electric cell?
EASY
Science>Physics>Electric Current and Its Effects>Symbols of Electronic Components
In which direction does the current flow in a closed circuit?
EASY
Science>Physics>Electric Current and Its Effects>Symbols of Electronic Components
Current flows through a _____ (open/ closed) circuit.
EASY
Science>Physics>Electric Current and Its Effects>Symbols of Electronic Components
Give the electrical symbols for battery.
EASY
Science>Physics>Electric Current and Its Effects>Symbols of Electronic Components
Why is an electric fuse required in all electrical appliances?
EASY
Science>Physics>Electric Current and Its Effects>Symbols of Electronic Components

Match the following.

Column A Column B
1. Battery a. circuit
2. Bell b. safety
3. Geyser c. cells
4. Switch d. heating coil
5. Fuse e. electromagnetic

 

EASY
Science>Physics>Electric Current and Its Effects>Symbols of Electronic Components
Why can't we use a copper wire for making an electric fuse?
EASY
Science>Physics>Electric Current and Its Effects>Symbols of Electronic Components
Give the electrical symbols for a resistance.
EASY
Science>Physics>Electric Current and Its Effects>Symbols of Electronic Components
The wire of an electric fuse is an alloy of copper and _____.
EASY
Science>Physics>Electric Current and Its Effects>Symbols of Electronic Components
Give the electrical symbols for electric cell.