$A$ galvanometer coil has a resistance of $12\,\Omega$ and the meter shows full-scale deflection for a current of $3\,mA$. To convert it into a voltmeter of range $0-18\,V$,what resistance should be added and how?

  • A
    In series of $6000\,\Omega$
  • B
    In parallel of $6000\,\Omega$
  • C
    In series of $5988\,\Omega$
  • D
    In parallel of $5988\,\Omega$

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