Question

What are ohms law give its experimental verification?

Answer 1

$<b><marquee behavior= "alternate">Answer:</marquee>$

$\huge\boxed{\fcolorbox{blue}{pink}{Ohm's\:law!!}}$

⭕It states that at a constant temperature, Current(I) through a conductor between two terminals is directly proportional to the potential difference (v) across those both terminals.. Thus V:1 → Constant....

✴️Experimental Verification!!

⭕A conductor of resistance R ohms is connected in series with an ammeter A, rheostat (which is a variable resistance) and a battery B through key K. Voltmeter V is connected across the ends of the resistance to measure the Potential difference across it..

⭕Now Note the reading of ammeter and voltmeter. After relapsing the Key K setting of the rheostat is changed. Key K is again pressed and voltmeter and ammeter reading are noted. Thus for various setting of rheostat the reading of ammeter as well as voltmeter are recorded. Form the observation it will be found that the Ratio of voltmeter reading and ammeter reading remains the same...

→ V1=V2=V3=V4................= Constant = R the resistance of the conductor i.e., L1, L2, L3, L4

$\huge\boxed{\fcolorbox{blue}{pink}{Attachment!!}}$

⭕If a curve can be drawn between Voltmeter and ammeter a straight line passing through original O will be obtained and the resistance of the conductor will be given by the slope of this line ...

Answer 2

$\huge \bold \red{ANSWER}$

Ohm's Law

At constant temperature, the current flows through the conductor is directly proportional to the potential difference across its end.

Verification of Ohm's Law

Procedure

A conductor of resistance R ohms is connected in series with an ammeter A, rheostat (variable resistance) and a battery B through key K. Voltmeter V is connected across the ends of the resistance to measure the potential difference across it.

Now key K is pressed and redings of voltmeter and ammeter are noted. After relapsing the key K the setting of the rheostat is changed, Key K is again pressed and voltmeter and ammeter readings are noted. Thus for various settings of rheostat the reading of voltmeter and ammeter are recorded.

Conclusion

It will be found that the ratio of voltmeter reading and ammeter reading remains the same.

$\huge\mathfrak{hope \: it \: helps}$

$\huge \bold \red{THANKS}$