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Step 1
Are these statements true or false? Correct the false ones.
1. An insulator is made of a material, which resists the flow of
electricity.
2. An electric current flows easily through a good conductor.
3. If a copper wire is connected to a battery an electric current
flows.
4. Nichrome is a good conductor of electricity.
5. If you pass an electric current through nichrome, heat is
generated.
6. Rubber has a low resistance to electric current.
7. An electric current flows easily through a material that has a
high resistance.
8. The lamp is dimmer when a smaller current flows.
Step 2
V - Voltmeter
S - Switch A - Ammeter
Make statements about symbols.
For example:
This is the symbol used for a lamp in an electric circuit
diagram A V
(An ammeter is used for measuring electric current. A voltmeter is
used for measuring electric energy). Now look at the circuit
diagram and read this: The battery is in the middle of the diagram
at the top and a voltmeter is connected across it. The lamp is on the
left, towards the top, the ammeter is on the right, towards the
bottom. The switch is positioned at the bottom and on the left.
Now read this and draw the circuit diagram, which is described.
The battery is in the middle of the diagram at the bottom and a
voltmeter is connected across it. On the right of the diagram is a
lamp, which is positioned towards the top. The ammeter is on the
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