Question

give any four precautions taken by student to perform an experiment to determine the resultant resistance of two resistors when connected in series

Answer 1

1: there should be closed circuit
2: there should be an ammeter placed in the circuit
3: there should be proper connection
4: there should be ammeter reading be zero.

Hope this will help you.

Answer 2

1.all connection should be tight
2. clean the ends of connecting wires
3.use ammeter n voltmeter of appropriate range
4. take out plug from plug key bw two observations