TASK 1: Measure the voltage across the battery in an open and closed circuit
Equipment:
Connecting wires;
A battery with an e.m.f. of 1.5V
Switch
Voltmeter
Resistors with resistance 1Ohm,10 Ohm, 100Ohm
Worksheet with a circuit diagram in it
Procedures:
1. Assemble the circuit a and write the reading of the voltmeter on the table;
2. Discuss the reason;
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3. Assemble the circuit b and write the reading of the voltmeter on the table;
4.
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5. Assemble the circuit c and write the reading of the voltmeter on the table;
6.
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7.
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8. Discuss the reason;
Result table:
Circuit a |
Circuit b |
Circuit c |
Circuit d |
V= |
V= |
V= |
V= |
R=100Ohm |
R=100Ohm |
R=10Ohm |
R=1Ohm |
I observed ________
The reason is ____
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