varun.s.murthy
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No.jardila said:Audioguru:
Excuseme, but you are wrong, diode is on or off because Vin may be positive (Vi >1 in this case) or less than 1V, then the answer is A).
Audioguru said:No.jardila said:Audioguru:
Excuseme, but you are wrong, diode is on or off because Vin may be positive (Vi >1 in this case) or less than 1V, then the answer is A).
The input voltage is shown as positive. Therefore the diode is reverse-biased and does nothing.
The current in the 2 ohms is 1A so the input voltage is 2V.
betwixt said:Don't worry Audioguru, I agree with your answer, based on the information given.
It must be the 'new math' they teach these days, it's no wonder so many people have problems.
Brian.
Audioguru said:The circuit is too simple.
The diode is reverse-biased so it does nothing.
Since there is 1A in 2 ohms then use Ohm's Law to calculate the input voltage.
Hint: 1A x 2 ohms= 2V.
If the question is multiple choice then you should have said so.
Audioguru said:The circuit is too simple.
The diode is reverse-biased so it does nothing.
Since there is 1A in 2 ohms then use Ohm's Law to calculate the input voltage.
Hint: 1A x 2 ohms= 2V.
If the question is multiple choice then you should have said so.
Audioguru said:The circle with an arrow inside and a "1A" label is an Amp-meter, isn't it?
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