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1. |
A shunt resistance of 50 Ω is required for extending the range of an ammeter from 100 to 500 μA. the value of internal resistance of the ammeter is: |
A. | 400 Ω |
B. | 200 Ω |
C. | 800 Ω |
D. | 100 Ω |
Answer» C. 800 Ω | |