Electronic Devices - Diode Applications - Discussion
Discussion Forum : Diode Applications - General Questions (Q.No. 23)
23.
Determine the current level if E = 15 V and R = 3 k
.
. 
Discussion:
14 comments Page 1 of 2.
Inuts said:
4 years ago
Assume that the given is a silicon diode.
Since it is the preferred type of diode over germanium most of the time. Unless stated that it is an ideal diode. Most of the time the problems are practical questions, that is why you need to consider the practical values, not ideal values.
Since it is the preferred type of diode over germanium most of the time. Unless stated that it is an ideal diode. Most of the time the problems are practical questions, that is why you need to consider the practical values, not ideal values.
Ravikiranpokuri said:
1 decade ago
Here they are not mentioned the type of diode so we have to consider the Ideal case
So According to Ohms Law the Answer is C i.e. 5ma
So According to Ohms Law the Answer is C i.e. 5ma
Srivani said:
9 years ago
@Niyas.
If it is not mentioned then we prefer silicon b/c it has low leakage current, more energy gap, and high resistivity.
If it is not mentioned then we prefer silicon b/c it has low leakage current, more energy gap, and high resistivity.
RANJITH RAO said:
1 decade ago
As voltage is in series with diode, there is some voltage drop at diode. So 'v' at 'D'is 14.3, current in circuit is 4.8mA.
Niyas said:
1 decade ago
They have not specified here which diode is that. There for considering ideal diode the answer is 5ma only.
(1)
NIRANCHANA said:
1 decade ago
MY OPTION IS C.5mA BECAUSE E=IR(OHMS LAW)
THEREFORE I=E/R
=15V/3KOHM
=5mA
THEREFORE I=E/R
=15V/3KOHM
=5mA
Stolas said:
3 years ago
Hello, what will happen when the voltage supply is less than the diode?
Please explain me.
Please explain me.
Pradeep said:
7 years ago
5 mA right answer because they are not specified that the diode is Ge or Si.
Venkateswarlu said:
1 decade ago
@Yasmin.
Voltage drop of Si is 0.7, Ge is 0.3 and Ideal diode is 0.
Voltage drop of Si is 0.7, Ge is 0.3 and Ideal diode is 0.
Saivam saini said:
1 decade ago
5mA is right answer because diode is consider ideal...
Shivam Saini
Shivam Saini
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