In the circuit of Fig. $26.44,$ each resistor represents a light bulb. Let $R_{1}=$ $R_{2}=R_{3}=R_{4}=4.50 \Omega$ and $\mathcal{E}=9.00 \mathrm{V}$ . (a) Find the current in each bulb. (b) Find the power dissipated in each bulb. Which bulb or bulbs glow the brightest? (c) Bulb$R_{4}$ is now removed from the circuit, leaving a break in the wire at its position. Now what is the current in each of the remaining bulbs $R_{1}, R_{2},$ and $R_{3} ?(d)$ With bulb $R_{4}$ removed, what is the power dissipated in each of the remaining bulbs? (e) Which light bulb(s) glow brighter as a result of removing $R_{4}$ ? Which bulb(s) glow less brightly? Discuss why there are different effects on different bylbs.