Advertisements
Advertisements
प्रश्न
In the circuit shown in figure, if the diode forward voltage drop is 0.3 V, the voltage difference between A and B is ______.
विकल्प
1.3 V
2.3 V
0
0.5 V
Advertisements
उत्तर
In the circuit shown in figure, if the diode forward voltage drop is 0.3 V, the voltage difference between A and B is 2.3 V.
Explanation:
Let us consider figure 2.3 V given above in the problem, suppose the potential difference between A and B is VAB.
Then, `V_(AB) - 0.3 = [(r_1 + r_2)10^3] xx (0.2 xx 10^-3)` .....[∵ VAB = ir]
= `[(5 + 5)10^3] xx (0.2 xx 10^-3)]`
= `10 xx 10^3 xx 0.2 xx 10^-3`
= 2
⇒ VAB = 2 + 0.3 = 2.3 V
APPEARS IN
संबंधित प्रश्न
What causes the setting up of high electric field even for small reverse bias voltage across the diode?
Draw its I – V characteristics of photodiode
Draw a labelled diagram of a full wave rectifier. Show how output voltage varies with time if the input voltage is a sinusoidal voltage.
Why is a zener diode considered as a special purpose semiconductor diode?
In a photo diode, the conductive increases when the material is exposed to light. It is found that the conductivity changes only if the wavelength is less than 620 nm. What is the band gap?
(Use Planck constant h = 4.14 × 10-15 eV-s, Boltzmann constant k = 8·62 × 10-5 eV/K.)
A plate current of 10 mA is obtained when 60 volts are applied across a diode tube. Assuming the Langmuir-Child relation \[i_p \infty V_p^{3/2}\] to hold, find the dynamic resistance rp in this operating condition.
With reference to a semiconductor diode, what is meant by:
(i) Forward bias
(ii) Reverse bias
(iii) Depletion region
Basic materials used in the present solid state electronic devices like diode, transistor, ICs, etc are ______.
We use alloys for making standard resistors because they have ____________.
With reference to Semiconductor Physics,
Name the diode that emits spontaneous radiation when forward biased.
What are the applications of p - n Junction diode?
The drift current in a p-n junction is from the ______.
Depletion layer in p - n junction diode consists of
On increasing the reverse biases voltage to a large value in a P – N junction diode-current
Draw V-I characteristics of a p-n Junction diode.
With reference to a semiconductor diode, define the potential barrier.
What is meant by forward biasing of a semiconductor diode?
Draw a labelled characteristic curve (l-V graph) for a semiconductor diode during forward bias.
