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An electric circuit is incomplete when the switch is in the  position.

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Important Questions on Electric Current and Its Effects

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Science>Physics>Electric Current and Its Effects>Symbols of Electronic Components
How much energy is given to each coulomb of charge passing through a 6 V battery?
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Science>Physics>Electric Current and Its Effects>Symbols of Electronic Components
In a particle accelerator, a current of 500 μA is carried by a proton beam in which each proton has a speed of 3×107 m/s. The cross-sectional area of the beam is 1.50 mm2. The charge density in this beam (in C/m3 is close to
 
MEDIUM
Science>Physics>Electric Current and Its Effects>Symbols of Electronic Components

Mention one similarity and one dissimilarity between electromotive force and potential difference. 

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

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

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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

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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

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Science>Physics>Electric Current and Its Effects>Symbols of Electronic Components
DEFINE THE FOLLOWING TERM:

Closed electrical circuit.

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

Electric current is flowing from _____.

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Science>Physics>Electric Current and Its Effects>Symbols of Electronic Components
Name and describe the main components of an electric circuit.
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Science>Physics>Electric Current and Its Effects>Symbols of Electronic Components
No appliances work when the circuit is _____(open/closed).
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Science>Physics>Electric Current and Its Effects>Symbols of Electronic Components
What is an open circuit?
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Science>Physics>Electric Current and Its Effects>Symbols of Electronic Components
In which direction does the current flow in a closed circuit?
MEDIUM
Science>Physics>Electric Current and Its Effects>Symbols of Electronic Components
What is the circuit in which electricity flows from positive terminal of a cell / battery to its negative terminal through all the components called?
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Science>Physics>Electric Current and Its Effects>Symbols of Electronic Components

A diagram showing the arrangement of the various components of an electric circuit with the help of their symbols. (circuit diagram / block diagram)

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

Draw in your notebook the symbols to represent the following components of electrical circuits:

connecting wires, switch in the 'OFF' position, bulb, cell, switch in the 'ON' position, and battery.

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Science>Physics>Electric Current and Its Effects>Symbols of Electronic Components
Current flows through a _____ (open/ closed) circuit.