Question

write two precautions which must be taken while determining the equivalent resistance in parallel combination

Answer 1

The circuit must be tight
Voltmeter must be connected in parallel

Answer 2

a. the connection should be tight and clean .

b. the wire should only be connected at the terminals not in between.

c. clean the ends of connecting wire with a sand paper .

d. take the voltmeter and ammeter in proper range .

e. the rheostat should be used of low resistance ( about 100).