Consider the circuits shown in figure 4. Each represents a configuration of LEDs driven by a voltage or a current source. For the purpose of this problem you can model the LED as a resistor. The intensity of the LED is proportional to the power dissipated by it. Suppose one LED burns out (i.e. becomes a open circuit), for each configuration shown determine if the intensity of the remaining LEDs becomes brighter, dimmer or stays the same. Support your answers with appropriate calculations. V 2000855 bbb (b) Figure 4: LEDs arranged in different configurations

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Consider the circuits shown in figure 4. Each represents a configuration of LEDs driven
by a voltage or a current source. For the purpose of this problem you can model the
LED as a resistor. The intensity of the LED is proportional to the power dissipated by
it. Suppose one LED burns out (i.e. becomes a open circuit), for each configuration
shown determine if the intensity of the remaining LEDs becomes brighter, dimmer or
stays the same. Support your answers with appropriate calculations.
V
(a)
D
ODDDDDD
V
(b)
Figure 4: LEDs arranged in different configurations
(c)
Transcribed Image Text:Consider the circuits shown in figure 4. Each represents a configuration of LEDs driven by a voltage or a current source. For the purpose of this problem you can model the LED as a resistor. The intensity of the LED is proportional to the power dissipated by it. Suppose one LED burns out (i.e. becomes a open circuit), for each configuration shown determine if the intensity of the remaining LEDs becomes brighter, dimmer or stays the same. Support your answers with appropriate calculations. V (a) D ODDDDDD V (b) Figure 4: LEDs arranged in different configurations (c)
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