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Questions and Answers
Which device is used to measure the electric current in the given circuit?
In the given setup, how is the voltmeter connected to the circuit?
What is the role of the rheostat in the circuit?
What is the unit of measurement for the current recorded by the ammeter?
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Which of the following components is connected in series with the power supply?
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Study Notes
Ohm's Law Experiment
- The experiment involves measuring the relationship between voltage, current, and resistance using a power supply, ammeter, rheostat, and constant resistance.
- The apparatus used includes:
- Power supply (E)
- Ammeter (A)
- Rheostat
- Constant resistance (R)
- Voltmeter (V)
Procedure
- Connect the power supply, ammeter, rheostat, and constant resistance in series.
- Connect the voltmeter in parallel with the constant resistance (R).
- Adjust the rheostat to obtain a convenient reading on the ammeter and voltmeter scales.
- Record the readings of current (I) from the ammeter and voltage (V) from the voltmeter.
Data Collection
- Record the readings in a table with columns for current (I) in milliamps and voltage (V) in volts.
- The table should have multiple rows for different readings taken at varying voltage levels.
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Description
Conduct an experiment to demonstrate Ohm's Law by measuring voltage and current using an ammeter and voltmeter. Learn how to calculate resistance and understand the relationship between voltage, current, and resistance.
