When measuring insulation resistance of cables using d.c. source, the galvanometer used should be initially short circuited because 

(A) Cables have a low value of capacitance which draws a high value of charging current

(B) Cables have a low value of initial resistance

(C) Cables have a high value of capacitance which draws a high value of charging current

(D) Cables have a low value of capacitance and initial resistance
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When measuring insulation resistance of cables using d.c. source, the galvanometer used should be initially short circuited because Cables have a high value of capacitance which draws a high value of charging current

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