The current sensitivity of a moving coil galvanometer can be increased by

  • A
    Increasing the magnetic field of the permanent magnet
  • B
    Increasing the area of the deflecting coil
  • C
    Increasing the number of turns in the coil
  • D
    All of the above

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$A$ moving coil galvanometer of resistance $100 \ \Omega$ shows full-scale deflection when a current of $100 \ \mu A$ passes through it. If it is intended to show full-scale deflection when a current of $1 \ mA$ passes through it,the value of shunt resistance in ohms to be connected to the galvanometer is:

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