The circuit contains two diodes,each with a f | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) In the given circuit,diode $D_{1}$ is forward-biased because its p-terminal is connected to the positive terminal of the battery. Diode $D_{2}$ is

Vedclass · Accepted Answer

$20$

Vedclass · Answer

(A) In the given circuit,diode $D_{1}$ is forward-biased because its p-terminal is connected to the positive terminal of the battery. Diode $D_{2}$ is reverse-biased because its n-terminal is connected to the positive terminal of the battery.Since $D_{2}$ is reverse-biased,it acts as an open circuit,and no current flows through the branch containing $D_{2}$ and the $100\, \Omega$ resistor.The circuit simplifies to a series combination of the battery $(6\, V)$,the forward resistance of $D_{1}$ $(50\, \Omega)$,the resistor $R_{1}$ $(130\, \Omega)$,and the resistor $R_{3}$ $(120\, \Omega)$.The total resistance of the circuit is $R_{total} = 50\, \Omega + 130\, \Omega + 120\, \Omega = 300\, \Omega$.Using Ohm's law,the current $i$ flowing through the circuit is:$i = \frac{V}{R_{total}} = \frac{6\, V}{300\, \Omega} = 0.02\, A$.Converting this to milliamperes $(mA)$:$i = 0.02 	imes 1000\, mA = 20\, mA$.Thus,the current through the $120\, \Omega$ resistance is $20\, mA$.

The circuit contains two diodes,each with a forward resistance of $50\, \Omega$ and an infinite reverse resistance. If the battery voltage is $6\, V$,the current through the $120\, \Omega$ resistance is $mA$.

Similar Questions

In the given figure,a $Si$ diode and a $Ge$ diode are connected in series. What should be the potential at point $A$ to bring both diodes into forward bias?

$A$ semiconductor $(Ge - As)$ has an energy gap of $1.43\, eV.$ What is the maximum wavelength emitted when a hole and an electron recombine in such semiconductor in $\mathring{A}$?

In a $p-n$ junction diode not connected to any circuit:

When forward bias is applied to a $p-n$ junction,then what happens to the potential barrier $(V_B)$ and the width $(X)$ of the depletion region?

In the given figure,three silicon diodes are connected in series. What voltage at point $X$ will make all three diodes forward-biased?

Vedclass Test Series

Exam Paper Generator

Online Exam Module