Write Ohm’s law. Describe the experiment showing Ohm’s law and write its conclusions.

•In the definite physical situation, the electric current flowing through the conductor is directly proportional to the potential difference applied across it is known as Ohm’s Law.

•To verify Ohm’s Law experimentally we set up the following circuit

In the following circuit, we have taken 0.5 meter long nichrome wire, four to five battery of 1.5V each, Ammeter and key.

•Now, when the key is ON, the current will flow through the wire. Measure the current in ammeter and potential difference across the two ends using voltmeter and note In the following table

•After this, plot the V vs I on a graph paper, we will observe something like this

•We will observe the following points

1. The electric current in the conductor increases in same proportion with increase in voltage.

2. I-V is a straight line

3. The ratio of V and I remains constant every time.