Following the ammeter setup of Fig. 2.61, design an ammeter for the following multiple ranges:
(a) 0–1 A (b) 0–100 mA (c) 0–10 mA
Take the full-scale meter current as Im= 1 mA and the internal resistance of the ammeter as Rm= 50 Ω.
Answer:Shunt resistors: 0.05Ω, 0.505Ω, 5.556Ω.
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