For the Circuit Shown in the Figure, the Ideal Battery $\varepsilon = 80 \mathrm {~V}$

Short Answer

For the circuit shown in the figure, the ideal battery has an emf $\varepsilon = 80 \mathrm {~V}$ . The four resistors have resistances of $R _ { 1 } = 14 \Omega , R _ { 2 } = 21 \Omega , R _ { 3 } = 21 \Omega$ , and $R _ { 4 } = 14 \Omega$ . Calculate the rate at which heat is being generated in the resistor $R _ { 4 }$ .