Determine the current supplied by each voltage source (8 V,12 V). using superposition theorem in figure 4. Fig.4 In 8v 2012 You lov 5 y 2 J" 12v
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- LED flashlights use "white" LEDs which have a diode voltage drop of 4.0V. A LED flashlight has the circuit illustrated and will run off several AAA batteries that have a 1.5 VDC rating. a. What is the minimum number of AAA cells needed to turn on the flashlight. b. Would you arrange the batteries in parallel or in series? Vdd R + LED V fritzing4 - Which of the following is the element whose resistance changes with the voltage applied to its ends?A) LDRB) VDRC) PTCD) NTCE) LED30 Determine 4rZ7Av tof the cireuit shownin The A4OSFET hao Hhe followitg parameters: 7K Fig-th30). tof 200k figft-30)AmpNet.of H Voofzor) Designtheamplifier netwark of Fig(131)t0hewe again of 10 Th device shauldbebiasedat Vas- Fig.H-31) Design the nebwork of fig Cl-32)tahave an argainof 10 •Vo An Ro-2.05kn) Yos=20AS RG
- Choose Values Of Resistance (Rc And Rs) In Kilo Ohm And Then Voltage Sources In Volt (Vcc > Ves). Find All Currents And All Voltages Rc RB VCE VCC VBBA battery is comprised of 7 cells connected in parallel, each cell has an EMF with 1.4V and an internal resistance of 0.55 ohm. There is a 5.8 ohm load connected to the terminals. Solve for ILoad.Now let's try using a pack of AA batteries (1.2 V output voltage and 0.2 Ohm internal resistance each) to replace the lead-acid battery. In order to match the car lead-acid battery, first, 10 such AA batteries need to be connected in series to form a 12V cell, while 50 such cells need to be connected in parallel (as shown in picture above; the total of 500 AA batteries are used). Find the power that is supplied to the same "car starter" using this pack of AA batteries. (Hint: for the second question, you need to find the total voltage and the internal resistance of the whole pack; you also need to find the resistance of the "car starter"; this can be done using the data of the first part of this problem)
- Two batteries, A and B, are connected in parallel and an 80 ohm resistor is connected across thebattery terminals. The e.m.f. and the internal resistance of battery A are l00V and 5 ohm respectively,and the corresponding values for battery B are 95V and 3 ohm respectively. Find (a) the value anddirection of the current in each battery and (b) the terminal voltageWrite the KCL equations for the circuit shown Node b:Node c: Node g: Node f:Given the circuit below, find the thevenin voltage and thevenin resistance (Vth and Rth). Current - in amperes Voltage - in volts Resistance - in ohms
- 22. Three resistances Rab Rbc and Rca are connected in delta. Obtain expressions for their equivalent star resistances. AUTH D'Topic: Nodal Analysis If we apply KCL at node "a", what should be the equation? Note: there is no resistance between nodes a and d.The variable resistor (RL) in the circuit is adjusted for maximum powertransfer to RL.a) Find the numerical value of RL.b) Calculate the power for the dependent voltage source and determine if itabsorbs or supplies power.c) Find the maximum power transferred to RL.