In your own words(not googled) please answer and help me understand the following a. What is a LED? Explain the working of a LED and give at least two applications.             b. Why do LEDs need series current-limiting resistors?             c. How does LED differ from an ordinary diode?

Q: Prove the following identities algebraically (a) (b) (A + B){A + B) = 0 A+ AB = A + B %3D

A: a) Given: A+BA+B¯=0  

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A: If binary number is of the form (ABC.D)2than equivalent decimal value is C×20+B×21+C×22+D×2-1.

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A: To calculate the total impedance and current through z3 and z6 for the given circuit 

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Q: Construct a circuit to perform a mod-10 synchoronous counter using 4 J-K Flip Flop and draw its gene...

A: According to the question, we need to design the mod-10 synchronous counter by using JK flip flop.  

Q: Evaluate {[e^(1/x)]/x^2}dx * O e^(1/x) + C O -e^(1/x) + C O (1/2)e^(1/x) + C O (1/2)e^(1/x) + C O O

A: Given, ∫{[e^(1/x)]/x^2}dx = ?

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A: It is asked the standard criteria for the proper placement of new and existing poles.

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Q: 2) With the help of illustration given below, evaluate with a discussion the points mentioned in the...

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Q: A 240 V series motor takes 40 amperes when giving its rated output at 1500r.p.m. Its resistance is 0...

A: take the ratio of back emfs to find external resistance in series with armature to operate motor at ...

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A: As,  Tcell=Tamp+NOCT-200.8.5 Tcell=30+47-200.8.1Tcell=64°C PV module performance data, under stateme...

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A: Here, we have given some information about the balanced three-phase star-connected load.  the load i...

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A: FIND: develop an equivalent circuit for a transformer  

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A: To solve above problem, one should know what rectifier circuit is and how it works. To charge a batt...

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A: The solution is given below. 

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A: FIND: Difference between modular and compact PLC  

Q: 18. Use KVL to obtain a numerical value for the current labeled i in each circuit depicted in Fig. 3...

A: 1)Given Kirchoffs voltage law(KVL):The algebric sum of voltages around a closed loop is equl to zero

Q: Construct a circuit to perform a mod-10 synchoronous counter using 4 J-K Flip Flop and draw its gene...

A: According to the question, we need to construct mod-10 synchronous counter by using JK flip flop.

Q: 3.45 Find V, in the network in Fig. P3.45 using nodal analysis. 1 k 2 k 2 k2 2v, 2 mA 1 k Figure P3....

A: In this question we will find voltage Vo using nodal analysis.... Note :- as per our guidelines , I ...

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Q: Sketch the output waveform. Show your complete analysis

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Q: 4. Consider the data below From (bus) To (bus) x (inductance) B (susceptance) 1 2 0.25 1 4. 0.4 1 0....

A: Given  The data flow  From(bus) To(bus) X(Inductance) B(susceptance) 1 2 0.25   1 4 0.4   1...

Q: A coil has X, = 1000 Q and 5 N internal resistance. Its Q is equal to ?

A: The quality factor of an inductive coil is given by : Q = XL/R

Q: The unit for mmf is Wb A V

A: The full form of MMF is Magnetomotive force. As due to the existence of EMF the current flowing in a...

Q: Sketch the output waveform. Show your complete analysis

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Q: Draw the logic circuit represented by the following expression. X= A+B[C+ D(B+ C)]

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Q: Question 6 For the waveforms given in Figure 5, A and B are ANDed with output F, D and E are ANDed w...

A: This question belongs to digital electronics . It is based on the concept of logic gates . It is abo...

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Q: For the current shown in the figure below, find the charge waveform and then find the value of charg...

A: The solution is given below 

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A: Silicon has four outermost electrons where are trivalent atoms has three outer most electrons.

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A: The Not gate is shown below:  The truth table of the NOT gate is shown below:  A (Input) C (Outp...

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A: We have given the following problem

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A: Given circuit

Q: 42 42 5 V 5 A 2.

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Q: Calculate the Fourier transform of the 'off-on-off' pulse f(1) defined by 0 (t 2) f(t) =

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A: Use block diagram to determine the sum generated by 5-bit parallel adder and show on the diagram the...

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Q: Q5: Find the state transition sequence s and the output encoded sequence c for the input information...

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Q: 4. Three point charges are located, each a distance a from the origin. Find a simple approximate for...

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Q: Find f(t) for each of the following functions. 135 a) F(s) s(s + 3)3*

A: Since you have posted the multiple questions so we are supposed to answer the 1st part ( a) only.