The approximate equivalent resistance between terminals A and B for the following infinite ladder network comprising of 1 Q & 20 resistors is: 19 19 19 A mŢ 29 To infinity B 292 20:
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- A RTD made up of platinum has a resistance of 440 Ohms at temperature 730 °C. a) Find the value of initial resistance RO if a =0.00385 b) Find the value of initial resistance RO if a =0.0386. a.Initial Resistance (RO) = b..Initial Resistance R01 =Diodes Are Connected In Series To Share A Total... 21 Question • Two diodes are connected in series to share a total reverse voltage of VD=D 5 KV. Reverse leakage currents of the diodes are ID1=30 mA and Ip2=35 mA. - Find Vp1 and Vp2 for R,=R2=100 k2 - Find R, and R2 for VD1=VD2 R1 VD1 Hint: Is=L,+IRj= I,2+IR2 VD R2 VD2a. If you do not go completely around the loop when applying Kirchhoff’s voltage law, then the algebraic sum of the voltages cannot be determined the algebraic sum of the voltages will always be positive the algebraic sum of the voltages will always be negative the algebraic sum is the voltage between the start and finish points b. A p -type semiconductor is a semiconductor doped with impurity atoms whose electron valence is +4 pentavalent impurity atoms trivalent impurity atoms
- How temperature effect conductivity? Explain with the help of following equation. m e'n7'aloulated m O1 the value you Up = A cos wt +1o Calaulate maarli)-min(i) =? Use constant voltage drop mad. Don7 to write units. . - 3.7V forgetA RTD made up of platinum has a=0.00385 and has a initial resistance of 420. Find the value of resistance Rt when the temperature is a) 690 b) 40 Rt1 at temperature 690: R12 at temperature 40:
- A device needs an output voltage of 28 volts full wave dc voltage. We have 4 diodes, one zener diode, one capacitor, one resistor and one 220v / 50v. There is a transformer. Load current 300 mA (maximum) How do you do this job with these materials? Write the appropriate values on them. Calculate with formulas. Draw the circuit.В- for the circuit shown in figure 2, the resistance of both diodes is 7 0. In the practical model of the diode, determine the current through the resistor RI when: • Switch Si is ON and switch S2 is OFF • Switch Si is OFF and switch S2 is ON S1 D S2 D2 Figure 2 v2 10 v R1 850 0 V3What is the voltage measured from the negative terminal of C4 to the negative terminal of the transformer? Assume ideal diode. Do not include the unit. HE D4 D3 D2 5 V CA C2
- A platinum coil has a resistance of 3.146 at 40OC and 3.767 at 100OC. Find the resistance at 0OC and the temperature –coefficient of resistance at 40OC. Major Topic 8 Temperature coefficient of resistance EV ScoBasic Electrical EngineeringDraw symbols of electrical components. Note: You may use both IEC and NEMA symbols. - Conductors crossing but not connected- Conductors crossing and connected - DC source other than battery- DC generator- AC voltage source- Ideal current source- Ideal Voltage Source- Current Controlled Current Source- Current Controlled Voltage Source- Voltage Controlled Current Source - Voltage Controlled Voltage Sourceliting Q9. For the circuit shown in Figure C9, Calculate the following i) Current through the Silicon diode (Isi). ii) Current through the Resistor R2 (1). iii) Current through the diode D4 (IGe4). iv) Voltage at points V3 and V4. Is D1. D2 Si Si oV4 RI 1.3K2 R3 2.7K R2 3K2 IGe4| 15V D5 Si 03 D4 Ge Ge V2 1V Figure C9