An alternating emf given by the equation $\mathrm{E}=200 \sin$ $(50 \pi \mathrm{t})$ (Where $\mathrm{E}$ is in volts and $\mathrm{t}$ is in seconds) is applied across a series combination of an inductor and a resistor having inductive reactance $40 \Omega$ and resistance $30 \Omega$ respectively. At time $t=1 \mathrm{~s}$, the power dissipated by the resistor is close to $$ \left(\cos 53^{\circ}=0.6\right) $$

• A

  $480 \mathrm{~W}$
• Correct answer
  B

  $240 \mathrm{~W}$
• C

  $173 \mathrm{~W}$
• D

  $307 \mathrm{~W}$

Hence, the correct answer is option: 'B'.