An ammeter with a full scale deflection of 10mA has an internal resistance 0.5(Omega). calculate the resistance of the shunt required to adapt it to read up to 3A
-
A.
0.0167(Omega) -
B.
0.0130(Omega) -
C.
0.0250(Omega) -
D.
0.1000(Omega)
Correct Answer: Option A
Explanation
(R_2 = frac{I_1R_1}{I_2} = frac{0.01 times 5}{2.99})
= 0.0167