Refer to Table, showing typical ratings for an LED. Which of the given resistor values would be most suitable for a current limiting resistor, if the LED is to be driven from a /x=21 V supply?

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Refer to Table, showing typical ratings for an LED. Which of the given resistor values would be most suitable for a current limiting resistor, if the LED is to be driven from a
Vx=21 V supply?
------ ..-lan dirone doăorlerindon hangici akim cinırlama dire--
--- T
Ix
Item
DC Forward Current IF
DC Reverse Current IR
DC Forward Voltage VF
DC Reverse Voltage VR
D1 Vp Power Dissipation Pp
Operating Temperature ToPr.
Unit
mA
Value
15
30 (VR = 5V)
2.2 (2.8 Max)
HA
Vx O
45
-40 to +95
mW
°C
O a. 1280 2
O b. 1253 2
O c. 1267 N
O d. 1240 2
O e. 1293 Q
Transcribed Image Text:Refer to Table, showing typical ratings for an LED. Which of the given resistor values would be most suitable for a current limiting resistor, if the LED is to be driven from a Vx=21 V supply? ------ ..-lan dirone doăorlerindon hangici akim cinırlama dire-- --- T Ix Item DC Forward Current IF DC Reverse Current IR DC Forward Voltage VF DC Reverse Voltage VR D1 Vp Power Dissipation Pp Operating Temperature ToPr. Unit mA Value 15 30 (VR = 5V) 2.2 (2.8 Max) HA Vx O 45 -40 to +95 mW °C O a. 1280 2 O b. 1253 2 O c. 1267 N O d. 1240 2 O e. 1293 Q
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