When an ammeter is inserted in the circuit, the circuit current will _____________?
Correct answer: B. Decrease
- A. Increase
- B. Decrease
- C. Remain the same
- D. None of the above
Explanation
A practical ammeter adds a small series resistance to the circuit, so the total resistance increases and the current decreases slightly. An ideal zero-resistance ammeter would leave the current unchanged, but real meters are represented by option b.
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