Figure 2 This is modification of Figure 1 (added Q 2 , Q 3 , and R L , deletion of C 3 and a changed value of R E1 ).
-Refer to Figure 2. If Vin = 1 Vrms, the ac power in RL is approximately
A)2.6 W
B)4.0 W
C)680 mW
D)1.3 W

Question

Figure 2 This is modification of Figure 1 (added Q 2 , Q 3 , and R L , deletion of C 3 and a changed value of R E1 ).
-Refer to Figure 2. If Vin = 1 Vrms, the ac power in RL is approximately
A)2.6 W 
B)4.0 W 
C)680 mW 
D)1.3 W

Quizplus · Accepted Answer

Given Vin = 1 Vrms and referring to a typical power calculation scenario in electronics, the ac power in RL can be approximated using the formula P = V^2/R, where V is the RMS voltage across the load and R is the load resistance. Without the specific details of the circuit in "Figure 2," such as the value of RL and the configuration (which might involve factors like amplification or attenuation), a precise calculation is challenging. However, the option closest to a realistic scenario, given a small input voltage like 1 Vrms, is 680 mW (C), assuming a reasonably efficient circuit and a common load resistance value. Higher power values would generally require either a higher input voltage or an amplification mechanism not specified in the question.

Figure 2 This Is Modification of Figure 1 (Added Q2

Figure 2 This Is Modification of Figure 1 (Added Q₂