Crystal radio receiver Please explain how this circuit works

Q: 8 ohms 6A 4 ohms 6 ohms www I1 5 volts www 2 ohms #H 10 volts 1 ohm #₁ 15 volts 3 ohms 5 ohms 9 ohms…

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Q: Electrical Engineering assume a switch connects 24 stations. assume each link operates a rate of 20…

A: Given: A switch connects 24 stations. Each link operates at a rate of 20 Mbps except for one station…

Q: otball now. Goodbye

A: To choose the correct form as,

Q: Q1/ For the following network: (a) write the mesh equations. (b) find the current Is through the…

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Q: 2) What are the salient features of supply voltage control method? Speed control three phase…

A: Methods of Speed control of three phase induction motor:  stator side,  Changing number of stator…

Q: How do we increase the voltage gain of an inverting and non-inverting op amp amplifier?

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Q: 4. Find the electric field at P(1,1,1), caused by four charges Q1 = 2nC Q2= 5x10°C Q3 = 3nC Q4=…

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Q: Determine the approximate value of lp of Figure 51. 12V $1.5kQ Q1 7.5 mA 4.69 MA 6.12 mA 5.625 mA…

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Q: Q3/ Explain and drive the equations of compound generators

A: Compound generator : In compound generators both series and shunt field windings are present one of…

Q: Explain the difference between magnetic and nonmagnetic materials and give example of each.

A: The difference between magnetic and non-magnetic materials are as follows

Q: Q4. Determine the value of collector current and collector-to- emitter voltage for the voltage…

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Q: Disregard negative sign. i₁ = A 1₂ = A V₁= V

A: We are authorized to answer three subparts at a time, since you have not mentioned which part you…

Q: Determine the approximate value of lp of Figure 56. 18 V Ip • 750 ΚΩ '91 ΚΩ Vas 2 ΚΩ OV 9V Pos loss…

A: Given circuit is shown below. We know that ID=IDSS1-VGSVP2

Q: 1.88 V 2.13 V the approximate value of VGs of Figure 56. 32K 750 KG 1-9 V 4-8 mA DI KO 0.68 k Figure…

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Q: Find the currents i₁, 12, and i3 by using Mesh analysis 10 V 492 12 V 12 www +1₁ 652 113 252

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Q: Given the information appearing in Fig. 4.119, determin a. Ic. b. Rc. c. RB- 12 V d. VCE- RB IB = 40…

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Q: Question 4 An AC Voltage v(t) = 250 cos (100nt) is applied to the given circuit. ~ V (1) sine…

A: Brief description: For the given sinusoidal voltage function we need to derive peak, peak to peak ,…

Q: , what is the total current supplied by the source

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Q: 4. Find Vo using Nodal Analysis

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Q: A 150-nC point charge is located at A(3, 1, -1) in free space. a. Find the locus of all points P(x,…

A: Given data is  A3,1,-1 at 150nC a. Locus point P(x,y,z)  Ex=500V/m Electric field at point P(x, y,…

Q: 2) What are the salient features of supply voltage control method?

A: Voltage Controller: A voltage controller, also known as an AC voltage controller or AC regulator, is…

Q: An RLC series circuit has a 182 resistor and a 25.0 mH inductor. At 8230 Hz, the phase angle is…

A: Given data, An RLC series circuit has R=182 ΩL=25.0 mHf=8230 Hzϕ=45°

Q: In the network shown, what is the value of le in mA?

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Q: 1- The efficiency of a 6600/384V, 200kVA, 1-phase transformer is 98% at full load 0.2 power factor…

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Q: Tutorial Problem No. 19.3 1. Three impedances Z₁, Z, and Z, are mesh-connected to a symmetrical…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Solve the voltages,currents, and powers.

A: For the given circuit solve for voltages, currents and powers : Didode D1 and D2 are Si diodes,…

Q: A receiver with a 75-ohms input resistance operates at a temperature of 31°C. The received signal is…

A: We are authorized to answer three subparts at a time, since you have not mentioned which part you…

Q: A 1200 KVA, 6600 volt, 3-phase, Y-connected alternator has an effective resistance of 0.40 ohm and a…

A: It is given that: 1200KVA6600 VR=0.4 ΩphX=6 Ωph

Q: Q1.A. A sequence detector has an input w and an output z. The machine is a sequence detector that…

A: FSM is the output depends on a present state . Moore machine is the finite state of machine which is…

Q: A 1,300 kVA, 14kV, 3-phase Y-connected synchronous motor has a resistance of 4 ohms and a reactance…

A: A synchronous motor is one in which the rotor tends to rotate at the same speed as the rotating…

Q: 1. Scenario 1: You are measuring the voltage through a circuit component in a com- plex resistor…

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A: A Synchronous generator is an electrical machine used to convert mechanical power into electrical…

Q: Find AC equivalent circuit of the circuit attached. hfe=1600

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Q: Determine the values of v₁.V₂. and v3. + 24 V Disregard negative sign. V1 = V2 V 12 V 10 V M

A: given here an electrical circuit and asked to determine the V1 , V2 , V3 .

Q: Q3: For the circuit shown in figure (3). Find v, and to ?

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Q: 10 V, Rs kQ2, Rc = 10 kn, R₁ = 15 k2, and C₁ = 9m 39.2 mA/V, C₁ = Cn2 = C₁ = T

A: It is given that, V+=10 VV-=-10 VRS=0.1 kΩR1=42.5kΩR2=20.5kΩR3=28.3kΩRE=6kΩRL=15kΩCL=0 The…

Q: Question 3 R M Vm = 20 V, V = 6 V, Determine the minimum output voltage. 20 V O -14 V -6 V -20 V

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Q: 15 40 A A F 12 30 A 10 A *XXXI 80 A 14 C D 13 E 25 A LL

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Q: 5. a. Find the bandwidth of a series resonant circuit having a resonant frequency of 6000 Hz and a…

A: The impedance of capacitor and inductor will be same at resonance condition. Based on the resonance,…

Q: Example5/ An open wire T-L with R=10 KQ/Km, L=3.7 mH/km, C-8.3x 10-⁹F/Km and G=0.4x 10-6U/Km, find…

A: Given,For an open wire T-L,R=10 kΩ/kmL=3.7 mH/kmC=8.3 nF/kmG=0.4 μΩ-1/kmF=1MHz

Q: An inductive circuit is parallel with a resistive circuit of 20ohms is connected across a 50Hz…

A: Given,In the RL circuit,The inductive current is,IL=4.3 AThe resistive current is,IR = 2.7 AThe…

Q: What is the base current in the given circuit in figure

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Q: A 1200 kVA, 6600 volt, 3-phase, Y-connected alternator has an effective resistance of 0.40 ohm and a…

A: Given  Few parameters of an alternator.we need to find the terminal voltage. Please find the below…

Q: what is the kVA rating of the synchronous motor

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Q: b) For kretsen i Figur 3, beregn total resistans (RT). R1 = 4kQ R3 = 8kQ R2 = 1kQ Figur 3. Krets for…

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Q: Determine the approximate value of drain voltage (VD) of the given circuit below. VOD 120V 18.33 V…

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Q: Example2/ Draw the vand is as a function of time when the switch on at t=0 ww R3 S2 Vs Ro Rr=00 ✓ -E

A: In this question we need to draw the voltage Vs and current is as a function of time.

Q: A three way intersection is in need of a traffic signal control system and you have been assigned…

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Q: 1. The children in my house are in 2. People always talk about 3. You are 4. She lives in 5. I…

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Q: 4. A long solenoid with 190 turns produces a flux of 3.6 x 10-5 Wb (through a plane normal to the…

A: Given data, N=190 ϕ=3.6×10-5 WbI=4.2 A

Thermistors

A thermistor is a special type of resistor whose resistance is more temperature-dependent than standard resistors.  The resistance of the thermistor decreases with increasing temperature. This is the basic principle of thermistors. This allows the thermistor circuit to detect very small temperature changes that cannot be observed with the Resistance temperature detectors (RTDs) or the thermocouples. Since the resistance of a thermistor is temperature dependent, it can be connected to an electrical circuit to measure body temperature. This high sensitivity to temperature changes makes thermistors very useful for accurately controlling and calibrating temperature measurements. In general, resistance increases with increasing temperature in most metals, but thermistors react negatively.