A and resistance 20
. The value of shunt resistance required such
that the instrument will have an f.s.d. of 1mA isA moving coil microammeter has an f.s.d. of
200A and resistance 20. The value of shunt resistance required such
that the instrument will have an f.s.d. of 1mA is
The answer is :- 1
A = 800A. The voltage drop across the shunt = voltage
across the meter = 200A x 20 = 4mV. Thus resistance of shunt = voltage
across shunt / current through shunt = 4mV / 800A = 5
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