A coil develops heat of $800\, cal/sec$. When $20\, volts$ is applied across its ends. The resistance of the coil is .............. $\Omega$ ($1$ $cal$ = $4.2$ $joule$)
  • A$1.2$
  • B$1.4$
  • C$0.12$
  • D$0.14$
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