Question

given the experiment to verifyed ohms law and explain the process​

Answer 1

Answer:

State ohm's law, suggest an experiment to verify it and explain the procedure. Ohm s law: The current through a conductor element is proportional to the potential difference applied between its ends provided the temperature remains constant. Aim : To show that the ratio of V/I is a constant for a conductor

Answer 2

Answer:

⭐ Experiment to verify ohm's law

Experiment to verify Ohm's law:

Set up a circuit as shown in figure shown, consisting of a nichrome wire XY of length, say 0.5m, an ammeter, a voltmeter and four cells of 1.5V each. First use only one cell as the source in the circuit. Note the reading in the ammeter I, for the current and reading of the voltmeter V for the potential difference across the nichrome wire XY in the circuit. Tabulate them in a table. Next connect two cells in the circuit and note the respective readings of the ammeter and voltmeter for the values of current through the nichrome wire and potential difference across the nichrome wire. Repeat the above steps using three cells and then four cells in the circuit separately. Calculate the ratio of V to I for each pair of potential difference V and current I.

In this experiment, we will find that approximately the same value for IV is obtained in each case. Thus the V–I graph is a straight line that passes through the origin of the graph, as shown in the figure. Thus, V/I is a constant ratio, which verifies Ohm's law.