3. (i) Three identical capacitors are connected in delta with 400 V. If the line current is 12 A determine the capacitance of each of the capacitors. If the 0 = 60° then calculate the %3! power dissipation in kW when it is connected in STAR

3. (i) Three identical capacitors are connected in delta with 400 V. If the line current is 12 A determine the capacitance of each of the capacitors. If the 0 = 60° then calculate the %3! power dissipation in kW when it is connected in STAR

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter21: Circuits And Dc Instruments

Section: Chapter Questions

Problem 72PE: Using the exact exponential treatment, find how much time is required to discharge a 250-? capacitor...

See similar textbooks

Related questions

Q: 71 In Fig. 27-69, R¡ = 20.0 Q, R2= 10.0 2, and the ideal battery has emf S2 S3 a 120 V. What is the…

Q: 5 For each circuit in Fig. 27-20, are the resistors connected in se- ries, in parallel, or neither?…

Q: 13-15. For the circuit below, i, = 1.4 A. Calculate ix and the total power dissipated by the…

A: io = 1.4 ALet, Ro = 16 Ω, R1 = 8 Ω, R2 = 4 Ω, and R3 = 2 Ω

Q: Some computer keyboards are based on the idea of capacitance. Each key is mounted on one end of a…

A: The capacitance of the capacitor between the reduced distance of the plates is,…

Q: does the voltage of the battery can decrease if you are using it? how?

Q: 27.6] A simple circuit contains only a parallel plate capacitor and a battery. The capacitor is…

A: Battery disconnected after full charging means after disconnecting of battery there will be no…

Q: 4 Figure 25-20 shows three circuits, each consisting of a switch and two capacitors, initially…

A: The charges transfer till the voltage is the same on both the left and right sides, when the…

Q: [27.6] A simple circuit contains only a parallel plate capacitor and a battery. The capacitor is…

Q: wo parallel plates connected to a 200 V power supply are separated by an air gap. How small can the…

A: break down voltage is a voltage for which electricity conduct between the plates .and dielectric…

Q: 29.12 [II] In Fig. 29-9, the voltmeter reads 14 V (with point-a at the higher potential) and the…

Q: With a partially-charged capacitor, will it take longer or shorter for a light bulb to stay lit?…

A: First of all light bulb is a resistor as current flows through its filament then due to the heating…

Q: 47-48. Capacitors of 2 nF, 3 nF, and 4 nF are connected in series with a 24 V battery, what is the…

Q: A capacitor having a capacitance of 40 uF is connected across 250 V DC source. The charging current…

A: Charging current will drop to zero when-(c) capacitor is fully charged. It is because when capacitor…

Q: (II) The capacitance of a portion of a circuit is to be reducedfrom 2900 pF to 1200 pF. What…

A: C1=2900 pFC=1200 pFx=Capacitor of unknown capacitance

Q: The switch in Fig. 8.73 is moved from A to B at t = 0 after being at A for a long time. This places…

A: When the switch is at position A for a very long time, the 20μF capacitor acts as an open circuit,…

Q: A Christmas light is made to flash via the discharge of a capacitor. The effective duration of the…

Q: •2 The capacitor in Fig. 25-25 has a capacitance of 25 µF and is initially uncharged. The battery…

A: The capacitor is initially discharged. Therefore, the amount of charge passes through the switch…

Q: Energy Stored on Capacitor A 165 µF capacitor is used in conjunction with a dc motor. How much…

A: Given data: Capacitance of the capacitor, C=165 μF = 165×10-6 F Potential difference between the…

Q: (III) Given three capacitors, C = 2.0 µF, C2 = 1.5 µF, and C3 = 3.0 µF, what arrangement of parallel…

A: Given data: C1=2.0 μF C2=1.5 μF C3=3.0 μF Voltage, V=12 V Since, C1 and C3 are in parallel,…

Q: Some computer keyboards are based on the idea of capacitance. Each key is mounted on one end of a…

A: Given data: The dielectric constant is k=3.50 The plate area is A=9.50×10-5 m2 The distance is…

Q: A 2.1-µF capacitor is fully charged by a 6.0-V battery. Thebattery is then disconnected. The…

A: Given data The capacitance of the capacitor is C=2.1 μF. The potential difference of the battery is…

Q: A Christmas light is made to flash via the discharge of a capacitor. The effective duration of the…

A: The energy dissipated will be the product of power and time.

Q: A Christmas light is made to flash via the discharge of a capacitor. The effective duration of the…

Q: 23-2. An automobile engine's starter motor draws a current I. (a) Write an equation for the amount…

A: Given data: Current (I) = 45 A Time (t) = 1.2 sec Need to determine the quantity of charge and…

Q: Is it true that the voltage decreases through time for both capacitor and resistor?

Q: The equivalent capacitance of a series combination is always less than any individual capacitor in…

Q: (III) Suppose 2.0 MW is to arrive at a large shopping mallover two 0.100Ω lines. Estimate how much…

A: Given data: Input power, P=2 MW =2×106 W Equivalent resistance, R=0.100+0.100=0.200 Ω Voltage,…

Q: *45 What multiple of the time constant 7 gives the time taken by an initially uncharged capacitor in…

Q: The voltage applied to a pure capacitor of 50*10*€ F is as shown in figure. Calculate the current…

A: Solution: Given that C = 50x10-6 F time, t = 0 - 1 mSec

Q: (II) Figure 17–44 is a photograph of a computer screen shot by a camera set at an exposure time of .…

A: (a) Let us redraw the screen of the monitor at regular intervals. Here, the location of the mouse is…

Q: Part 3.3. Q Measured, V Variable, C Constant 3000V 2000V 1000V Q 9V 6V 3V (Measured) Question: Why…

A: The capacitance of a capacitor to is given by the formula C = eoA/d (where eo is the permittivity…

Q: A defibrillator containing a 13.2 μF capacitor is used to shock the heart of a patient by holding it…

A: Given data The capacitance is given as C=13.2 μF. The voltage is given as V = 16.5 kV.

Q: 2- chapter28-question5 Two resistors and two uncharged capacitors are arranged as shown in Figure. A…

A: Given : V = 24 V R1 = 8.8 ohms R2 = 4.4 ohms C1 = 0.48 uF C2 = 0.36 uF

Q: 77. ssm Determine the voltage across the 5.0 - 2 resistor in the drawing. Which end of the resistor…

A: From the question, it is given that- Voltage 1: V1 = 10.0 V Voltage 2: V2 = 2.0 V Voltage 3: V3 =…

Q: Why does current in a steady state not flow in a capacitor connected across a battery? However…

A: In a steady state, potential difference across the capacitor is equal to the potential difference of…

Q: For the circuit shown in Fig. 19–46, what happens when the switch S is closed? (a) Nothing. Current…

A: In a series RC circuit, when a DC voltage supply is applied to a discharged capacitor, the capacitor…

Q: Part 3.2. Q Measured, C Variable, V Constant DERDE d=1mm d=2mm d=3mm d=4mm 36V 18V 12V 9V (Measured)…

A: Capacitance of a capacitor is given by the formula : C = ϵo×A/d Where A is the area of plates d…

Q: With the switch open, the potential difference across the capacitor in Figure below is 10.0 V. After…

Q: Under dc conditions, Find the energy stored in the capacitors in Fig. 6.13. Figure 6.13 3 k2 ww 1 k2…

A: In the given circuit, We have to determine the energy stored in given capacitor in DC conditions.

Q: Some computer keyboards are based on the idea of capacitance. Each key is mounted on one end of a…

A: Given that, Initial separation between the plates = 5.00 mm Then the separation between the plates…

Q: Some computer keyboards are based on the idea of capacitance. Each key is mounted on one end of a…

A: The capacitance of a parallel plate capacitor is given by C =k εo Ad where, k is the dielectric…

Q: Your home computer station uses 100 watts while idling. You decide to shut down your computer when…

A: Power of computer station = 100 W = 0.1 kW charges of the electricity consumption = 5.5 cents per…

Concept explainers

Ohm's law

Ohm’s law is a prominent concept in physics and electronics. It gives the relation between the current and the voltage. It is used to analyze and construct electrical circuits. Ohm's law states that the voltage across a conductor is directly proportional to the current flowing through it.

Path of Least Resistance

In a series of alternate pathways, the direction of least resistance is the actual or metaphorical route that offers the least resistance to forwarding motion by a given individual or body.

Question

3. (i) Three identical capacitors are connected in delta with 400 V. If the line current is 12 A
determine the capacitance of each of the capacitors. If the 0 =
60° then calculate the
power dissipation in kW when it
connected in STAR

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 1 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

Using the exact exponential treatment, find how much time is required to charge an initially uncharged 100-pF capacitor through a 75.0-M resistor to 90.0% of its final voltage.
Using the exact exponential treatment, find how much time is required to discharge a 250-? capacitor through a 500- resistor down to 1.00% of its original voltage.
Verify that the units of a volt-ampere are watts, as implied by the equation P =IV.
If you wish to take a picture of a bullet traveling at 500 m/s, then a very brief flash of light produced by an EC discharge through a flash tube can limit blurring. Assuming 1.00 mm of motion during one EC constant is acceptable, and given that the flash is driven by a 600F capacitor, what is the resistance in the flash tube?
Refer to Figure 10.17 and the discussion of lights dimming when a heavy appliance comes on. (a) Given the voltage source is 120 V, the wire resistance is 0.800 and the bulb is nominally 75.0 W, what power will the bulb dissipate if a total of 15.0 A passes through the wires when the motor comes on? Assume negligible change in bulb resistance, (b) What power is consumed by the motor?
The immediate cause of many deaths is ventricular fibrillation, an uncoordinated quivering of the heart, as opposed to proper beating. An electric shock to the chest can cause momentary paralysis of the heart muscle, after which the heart will sometimes start organized beating again. A defibrillator is a device that applies a strong electric shock to the chest over a time of a few milliseconds. The device contains a capacitor of a few microfarads, charged to several thousand volts. Electrodes called paddles, about 8 cm across and coated with conducting paste, are held against the chest on both sides of the heart. Their handles are insulated to prevent injury to the operator, who calls Clear! and pushes a button on one paddle to discharge the capacitor through the patient's chest Assume an energy of 3.00 102 W s is to be delivered from a 30.0-F capacitor. To what potential difference must it be charged?
An electronic apparatus may have large capacitors at high voltage in the power supply section, presenting a shock hazard even when the apparatus is switched off. A “bleeder resistor" is therefore placed across such a capacitor, as shown schematically in Figure 21.50, to bleed the charge from it after the apparatus is off. Why must the bleeder resistance be much greater than the effective resistance of the rest of the circuit? How does this affect the time constant for discharging the capacitor?
When discharging a capacitor, as discussed in conjunction with Figure 21.39, how long does it take for the voltage on the capacitor to reach zero? Is this a problem?
Question 2: #46 With the switch open, the potential difference across the capacitor in Figure below is 10.0 V. After the switch is closed, how long will it take for the potential difference across the capacitor to decrease to 5.0 V?
(III) Suppose 2.0 MW is to arrive at a large shopping mallover two 0.100Ω lines. Estimate how much power is savedif the voltage is stepped up from 120 V to 1200 V and thendown again, rather than simply transmitting at 120 V.Assume the transformers are each 99% efficient
The switch in Fig. 8.73 is moved from A to B at t = 0 after being at A for along time. This places the two capacitors in series, thus allowing equal andopposite de voltages to be trapped on the capacitors. (a) Determine vi(0),v2(0-), and vr(0-). (b) Find vi(0+), v2(0+), and vr(0+). (c) Determine thetime constant of vr(t). (
A Christmas light is made to flash via the discharge of a capacitor. The effective duration of the flash is 0.21 s (which you can assume is the time constant of the capacitor), during which it produces an average 35 mW from an average voltage of 2.85 V. How much energy, in joules, does it dissipate?