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When the shunt resistance of the galvanometer circuit increased its

  • When the shunt resistance of the galvanometer circuit increased its Current sensitivity decreases.
  • A shunt resistor is connected in parallel with the galvanometer to provide an alternative path for current to flow.
  • This reduces the current flowing through the galvanometer and prevents it from being damaged by high currents.
  • However, since the shunt resistor provides an alternative path for current, the overall circuit resistance decreases, which causes an increase in the total current flowing through the circuit.
  • When the shunt resistance is increased, the amount of current flowing through the galvanometer decreases.
  • This causes a decrease in the sensitivity of the galvanometer to changes in current. Therefore, the current sensitivity of a galvanometer circuit decreases when the shunt resistance is increased.