I am having a very first look at diodes in circuits, and can't find easy-to-understand information anywhere. Unfortunately, this happens often since I understand very little in any subject I attempt...
So, if I have a diode in series with a resistor, and it is a 'forward' diode, is the pd always going to be 0.6V? Are there diodes that get smaller or bigger pd then that? Does the value of resistor or the emf affect the pd of the diode?
'Reverse' Diode gives an infinite resistance, in my calculations, can I say this resistance is in fact 0?
When the total emf is smaller than 0.6V, the pd of the diode will still be 0.6V when a current passes through it? Or will it be equal to the emf (if there is no r or R in the theoretical circuit)?
I am attempting a question regarding diodes in parallel...
I need to work out pd & current for each resistor and diodes.
X has a pd of 0.6 and Y seems to be reverse so infinite resistance (whatever that means) but how am I suppose to know its voltage? Do reverse diodes have any voltage at all if they don't allow current to pass through? And then I don't know how am I suppose to work out the voltages for everything else in order to work out the current.
Thanks, I know I am asking much...
So, if I have a diode in series with a resistor, and it is a 'forward' diode, is the pd always going to be 0.6V? Are there diodes that get smaller or bigger pd then that? Does the value of resistor or the emf affect the pd of the diode?
'Reverse' Diode gives an infinite resistance, in my calculations, can I say this resistance is in fact 0?
When the total emf is smaller than 0.6V, the pd of the diode will still be 0.6V when a current passes through it? Or will it be equal to the emf (if there is no r or R in the theoretical circuit)?
I am attempting a question regarding diodes in parallel...
I need to work out pd & current for each resistor and diodes.
X has a pd of 0.6 and Y seems to be reverse so infinite resistance (whatever that means) but how am I suppose to know its voltage? Do reverse diodes have any voltage at all if they don't allow current to pass through? And then I don't know how am I suppose to work out the voltages for everything else in order to work out the current.
Thanks, I know I am asking much...