Numerical- Shunt resistance for given ammeter range

Q.  A PMMC instrument gives full scale deflection at 40 mV potential difference and 8 mA current. What will be the required shunt resistance when it is used as ammeter of range 0 – 10 A?
- Published on 04 Nov 15

a. 0.002 ohm
b. 0.003 ohm
c. 0.004 ohm
d. 0.005 ohm

ANSWER: 0.004 ohm

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