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Two identical long, thin, solid cylinders are used to conduct heat from a reservoir at temperature T hot to a reservoir at temperature T cold . Originally the cylinders are connected in series as shown in Fig. 23-24, and the rate of heat transfer is H 0 . If the cylinders are connected in parallel instead as shown in Fig. 23-24b, then what would be the rate of heat transfer? (A) 16H 0 (B) 4H 0 © 2H 0 (D)H 0 /2 (E) the answer depends on the thermal conductivity, K, of the cylinders.

Two identical long, thin, solid cylinders are used to conduct heat from a reservoir at      temperature Thot to a reservoir at temperature Tcold. Originally the cylinders are  connected in series as shown in Fig. 23-24, and the rate of heat transfer is H0. If  the cylinders are connected in parallel instead as shown in Fig. 23-24b, then what would   be the rate of heat transfer?                                                                                                                                       (A) 16H0     (B) 4H0        © 2H0       
(D)H0/2                                                                     (E) the answer depends on the thermal conductivity, K, of the cylinders.

Grade:10

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