Q. 39 A 0-1 Ampere moving iron ammeter has an internal resistance of and inductance of 0.1 mH. A shunt coil is connected to extend its range to 0-10 Ampere for all operating frequencies. The time constant in milliseconds and resistance in m of the shunt coil respectively are
(A) 2, 5.55
(B) 2, 1
(C) 2.18, 0.55
(D) 11.1, 2
Answer:(A)
Explanation: