Question

Write any two precautions to be taken while determining the equivalent resistance to two resistors when connected in series?

Answer 1

the two precautions are :

1. Current should not flow through the resistors for a long time .

2. The circuit should have to be complete while determining the equivalent resistance

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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)