Questions
A diode made of Silicon has a barrier potential of 0.7 V and a current of 20 mA passes through the diode, when a battery of 4 V and a resistance R are in series to it. The wattage of the resistor is
detailed solution
Correct option is D
Potential drop across the resistance is 4-0.7=3.3 V Power consumption across the resistance is VI=3.3×20×10-3=66 mWTalk to our academic expert!
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The diode used in the circuit has barrier voltage 0.5 V and maximum power rating is 10 mW. What should be the minimum value of resistance R connected in series with the diode
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