Bissoy.com
Doctors Medicines MCQs Q&A

When the diode is forward biased, it is equivalent to

When the diode is forward biased, it is equivalent to Correct Answer An On switch

  • A diode is an electrical device allowing current to move through it only in one direction.
  • Current flow is permitted when the diode is forward biased.
  • Current flow is prohibited when the diode is reversed biased.
  • The direction of the arrow represents the direction of conventional current flow when the diode is forward biased

 

In the figure given below, the symbol represents the circuit symbol of a semiconductor junction diode.

[ alt="F1 U.B. Nita 11.11.2019 D 4" src="//storage.googleapis.com/tb-img/production/19/11/F1_U.B._Nita_11.11.2019_D%204.png" style="width: 265px; height: 238px;">

[ alt="F2 Shubham 28.9.20 Pallavi D15" src="//storage.googleapis.com/tb-img/production/20/09/F2_Shubham_28.9.20_Pallavi_D15.png" style="width: 325px; height: 75px;">


In forward bias the diode conducts current like a good conductor (with low resistance), it is similar to ON switch in networks.

Related Questions

Which of the following is the correct match based on the application of diodes? (considering general trends) (a) Zener diode -- Reverse biased (b) Photodiode - Forward biased (c) Half wave Rectifier - Both Forward and reversed biased
For transistor action (a) Base, emitter, and collector regions should have similar size and doping concentrations. (b) The base region must be very thin and lightly doped. (c) The emitter-base junction is forward biased and the base-collector junction is reverse biased. (d) Both the emitter-base junction as well as the base-collector junction are forward biased. Which one of the following pairs of statements is correct?
Consider the following statements regarding Thyristor: 1. It conducts when forward biased and positive current flows through the gate 2. It conducts when forward biased and negative current flows through the gate 3. It commutates when reverse biased and negative current flows through the gate 4. It commutates when the gate current is withdrawn Which of these statement(s) is/are correct?
Consider the following statements regarding an N-P-N Bipolar Junction Transistor: 1. Emitter diode is forward biased and the collector diode is reverse biased 2. Emitter has many free electrons 3. Free electrons are injected into the base and pass through the collector 4. Depletion layers around junction J1 and J2 of BJT are widened. Which of the above statements are correct?
The output of the following Python code is similar to the alphabet . . . . . . . .
import turtlet=turtle.Pen()t1=turtle.Pen()t2=turtle.Pen()t.forward(100)t1.forward(100)t2.forward(100)t1.left(90)t1.forward(75)t2.right(90)t2.forward(75)
In a BJT, if the collector-base junction is forward-biased and the base-emitter junction is forward-biased, which region is the BJT operating in?
What is the effect on the diode current in a forward biased photo diode with increase in incident light intensity?
The active medium of a semiconductor diode is the junction of the forward biased P-N diode.
When a forward biased is applied to a diode, the electrons enter to which region of the diode?
A PN junction diode with 100Ω resistor is forward biased such that 100A current flows. If voltage across this combination is instantaneously reversed to 10V at t=0, the reverse current that flows through diode at t=0 is?