Concept explainers
Fill in all the missing values. Refer to the formulas that follow.
Resistance | Capacitance | Time constant | Total time |
150
|
100
|
||
350
|
35 s | ||
350 pF | 10 s | ||
0.05
|
|||
1.2
|
0.47
|
||
|
0.05 s | ||
86
|
1.5 s | ||
120
|
470 pF | ||
250 nF | 100 ms | ||
8
|
150
|
||
100
|
150 ms | ||
33
|
4
|
The missing values in the table.
Answer to Problem 1PP
Resistance | Capacitance | Time Constant | Total Time |
150 kΩ | 100 µF | 15 s | 75 s |
350 kΩ | 20 µF | 7s | 35 s |
142.85 MΩ | 350 pF | 0.05 s | 0.25 s |
40 MΩ | 0.05 µF | 2 s | 10 s |
1.2 MΩ | 0.47 µF | 0.564 s | 2.82 s |
4166.67 Ω | 12 µF | 0.05 s | 0.25 s |
86 kΩ | 3.488 µF | 0.3 s | 1.5 s |
120 kΩ | 470 pF | 56.4 µs | 282 µs |
80 kΩ | 250 nF | 20 ms | 100 ms |
3.75 Ω | 8 µF | 30 µs | 150 µs |
100 kΩ | 1.5 µF | 150 ms | 750 ms |
33 kΩ | 4 µF | 132 ms | 660 ms |
Explanation of Solution
We are given the following formulae,
Want to see more full solutions like this?
Chapter 20 Solutions
Mindtap Electrical, 4 Terms (24 Months) Printed Access Card For Herman's Delmar's Standard Textbook Of Electricity, 6th (mindtap Course List)
- Capacitive Circuits Fill in all the missing values. Refer to the formulas that follow. XC=12fCC=12fXCf=12CXc Capacitance XC Frequency 38 F 60 Hz 78.8 400 Hz 250 pF 4.5 k 234 F 10 kHZ 240 50 Hz 10 F 36.8 560 nF 2 MHz 15 k 60 Hz 75 nF 560 470 pF 200 kHz 6.8 k 400 Hz 34 F 450arrow_forwardYou find that a 25-F capacitor connected to 480 VAC is defective. The storeroom has no capacitors with a 480-VAC rating. However, you find two capacitors rated at 50 F and 370 VAC. Can these two capacitors be connected in such a manner that they can replace the defective capacitor? If yes, explain how they are connected and why the capacitors will not be damaged by the lower voltage rating. If no, explain why they cannot be used without damaging the capacitor.arrow_forwardWhat is the unit of measurement for the strength of a capacitor? microamp microtorque microfarad microwattarrow_forward
- ) Listen Calculate the total capacitance of ten, 10-µF capacitors placed in parallel. 10 µF O 0.1 µF O 0.01 µF O1 uF O 100 µFarrow_forwardFour capacitors 0.0010 centifarads, 0.025 millifarads, 35,000 nanofarads and 40 microfarads are connected in series across 120 volts source. Calculate the voltage across 40 microfarad capacitance.arrow_forwardYou will calculate the time constant for the circuit shown in the illustration below using Equation 1-1: AC source 4 w 1000 HH Figure 1-3 Calculate the RC time constant C1 1pF 1-6 What is the time constant of this circuit, in milliseconds (ms)?arrow_forward
- Circuits 1 HW 7 Q7arrow_forwardQ1 Explain the following terms: (a) Sensor (1.5 marks) (b) Transducer (1.5 marks) (c) Instrument Q2 Q3 (2 marks) Based on Figure Q2, if the RTD sensor measurement is 57°C answer the following. (a) Calculate the output current from RTD sensor if the output range is 4 20mA. (2 marks) (b) Calculate the output voltage from the temperature controller if the output range is 0-10VDC. (2 marks) (c) Propose a type of sensor if the process temperature is increased to 1000°C. (1 marks) A capacitive displacement transducer is designed to determine the rotary position. from 0° 180° as shown in Figure Q3. The moving plate whose radius is 40mm is sandwiched between two fixed plates, spacing at Imm. The dielectric constant of air is k 1.The capacitive transducer is formulated as: where; (a) kA€。 farads k = dielectric constant A the area of the plate, in square meters €₁ = 8.854 × 10-12 in farads per meter d = the plate spacing in meters Construct an equation of the change of the capacitance (F) when…arrow_forwardCalculate the voltage across each capacitor in Figure 1. 50μ F 40μ F 10μ F + V1 - + V3 - 90 V V2 20μ F 20μ F + V4 - 10μ F Figure 1arrow_forward
- A 1 Megaohm resistor is connected in series with 1 microfarad capacitor. If the circuit is suddenly impressed by 1kV DC source, what is the transient current when the switch is closed after 1,000 milliseconds? O 0.9990 mA O 0.6065 mA O 0.368 mA O 0.7788 mAarrow_forwardelearning.adpoly.ac.ae * Question Completion Status: QUESTION 35 E-1, PC-2. Materials that have no free electrons are called? O thermistors O semicondutors O conductors O insulators QUESTION 36 E-05, PC-03. Three capacitors, 100µF, 200µF and 300µF are connected in series. What is the total capacitance? O 55µF O 600 F O 200µF O 600µF QUESTION 37 E-05, PC-02. Capacitors hold energy in the form of? O Electric field kinetic enegy magnetic field chemical energy Click Save and Submit to save and submit. Click Save All Answers to save all ansuwers.arrow_forwardRefer to Figure If 50V is applied across the capacitors, determine Q. Write the answer in mC 30 μF 60 µF 20 µF ▬HE HE C₁ C2 C 3 -arrow_forward
- Delmar's Standard Textbook Of ElectricityElectrical EngineeringISBN:9781337900348Author:Stephen L. HermanPublisher:Cengage LearningElectricity for Refrigeration, Heating, and Air C...Mechanical EngineeringISBN:9781337399128Author:Russell E. SmithPublisher:Cengage Learning