Question

Q- STATE OHM'S LAW AND DESCRIBE ITS EXPERIMENTAL VERIFICATION?

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Answer 1

The constant R is constant for a given metallic wire and at a given temperature and is known as resistance. Experimental verification of Ohm's law: ... Connect a voltmeter parallel with a resistance R and connect the ammeter in series with the circuit.

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Answer 2

Answer:

According to Ohm's Law, the current flowing in a conductor is directly proportional to the potential difference across its ends provided the physical conditions and temperature of conductor remains constant.

Experiment Verification:

Let resistance used for verification be R. Make a circuit of R, voltmeter and ammeter measuring voltage and current through R, rheostat (variable resistor), and a cell. Connect the components properly. Note down values of voltage and current shown by voltmeter and ammeter. Repeat the above for different values of Rheostat. Record data in a tabular format and calculate $\frac{v}{i}$ for each case. Its should be approximately same. Plot V v/s I on a graph paper. A straight line is obtained whose slope equals resistance