State Ohm’s law. Explain and verify Ohm’s law with the help of a circuit diagram
Answers
Answer:
Ohm's law, description of the relationship between current, voltage, and resistance. The amount of steady current through a large number of materials is directly proportional to the potential difference, or voltage, across the materials.
Explanation:
Ohm's law states that Current through a conductor is directly proportional to voltage difference across it.
IαV
⇒V = I R
where V is the voltage, I is the current and R is the resistance.
The circuit diagram to verify ohm's law is drawn below. Voltmeter across a resistor is connected in parallel. Ammeter to measure current in the circuit is attached in series. A variable resistor is connected. Changing the resistance would alter potential drop across the resistor which would affect the amount of current. From the reading we find that I and V vary linearly.
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