The full-scale deflection current of an ammeter is 4 mA and its internal resistance is 400Ω. If this meter is to have a full deflection of 10 A, what is the value of the shunt resistance to be used?
A. 49.99 Ω
B. 0.16 Ω
C. 1.5 Ω
D. 2.6 Ω
Answer:B
The full-scale deflection current of an ammeter is 4 mA and its internal resistance is 400Ω. If this meter is to have a full deflection of 10 A, what is the value of the shunt resistance to be used?
A. 49.99 Ω B. 0.16 Ω C. 1.5 Ω D. 2.6 Ω