Question

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

Answer 1

(i) Clean the ends of the connecting wires by sand paper.
(ii) The connections should be tight.
(iii) Close the key (K) only when readings are to be taken.
(iv) Zero errors and the ranges of the ammeter and voltmeter should be noted.