Why does an ammeter have very low resistance?
ATo produce a large potential difference across itself
BTo avoid significantly changing the current in the circuit
CTo store electrical energy efficiently
DTo work only in parallel combination
Answer & Solution
Correct answer: B. To avoid significantly changing the current in the circuit
An ammeter should measure current without altering it appreciably. Therefore, it is designed with very low resistance so that the potential drop across it is very small and the circuit current remains nearly unchanged.
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