Write Ohms Law. Describe the experiment showing Ohms Law and Write its conclusions.
Answers
Explanation:
OHM'S LAW
Ohm's law is a law that states that the voltage across a resistor is directly proportional to the current flowing through the resistance. Ohm's law is named for German physicist Georg Ohm (1789-1854). A simple formula, Ohm's law, is used to show the relationship of current, voltage, and resistance
Experiment to prove Ohm’s law :-
For Ohm’s law, we make a circuit as shown above. The nichrome wire (conductor) is connected in series with a battery and an ammeter through a key. A voltmeter is connected in parallel between its two ends.
When the key is ON, current flows through the wire, which is measured by the ammeter. In addition, the potential difference developed across the ends of the nichrome wire is measured by the voltmeter. The readings are noted in the table given below.
Next, connect two batteries instead of one and again the magnitudes of current and voltage are noted.
Similarly the experiment is performed with three batteries and so on.
Conclusions:
The electric current in the conductor increases proportionally with the increase in voltage.
I-V graph is a straight line.
The ratio of V and I remains constant every time.
The electric current in the conductor increases proportionally with the increase in voltage.
I-V graph is a straight line.
The ratio of V and I remains constant every time.
⛔ NONEXISTENT ⛔
Answer:
The potential Difference at the two ends of the current carrying conductor is proportional to the current flowing in it provided that it's temperature remains same. This is the Ohm's Law.
V = IR
Explanation:
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