Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Electrical & Electronics Expert

problem 1: With an appropriate standard coil joined to a Q-meter resonance is obtained with a frequency f1 with resonating capacitor set at C1; the indicated Q-factor is Q1. The unknown impedance is joined in series with the standard coil and resonance is re-established by re-setting the resonance capacitor at C2, the corresponding Q-factor being Q2. Find out:

a) The resistive
b) Reactive components of the unknown impedance

When C1 = 208 pF, Q1 = 80, C2 = 184pF and Q2 = 50. And the frequency is 165 kHz.

problem 2: A coil is tuned to resonance at 500 KHz with resonating capacitance of 36 µµF. At 250 kHz the resonance is obtained with a resonating capacitance of 160 µµF. Find out the self-capacitance and inductance of the coil.

problem 3: Tests by using a Q-meter, on a radio-tuning coil to establish the self-capacitance, gave the results shown below:

a) With the radio coil joined normally resonance was obtained at 800 kHz with the tuning capacitor of the Q-meter set at 95 pF.

b) With a standard inductor joined in place of radio coil, resonance was obtained at 2.5 MHz and this condition was not changed when the radio coil was joined in parallel with the standard inductor. Find out the self-capacitance of the radio coil.

problem 4: A circuit comprising of an unknown coil, a resistance and a variable capacitor joined in series is tuned to resonance by using a Q-meter. If the frequency is 450 kHz and the resonating capacitor is set at 250pF, find out the effective inductance and resistance of the unknown coil. The Q-meter points out 105 and the resistance is 0.75?.

problem 5: A coil is tuned to resonance at 1 MHz by a resonating capacitance of 480pF. At 2 MHz the resonance is obtained with a resonating capacitance of 120 pF. Find out:

a) Self-capacitance of the coil
b) True and indicated values of Q when R = 10? for both the measurements.

problem 6: Two sets of measurements were taken out for measuring Q of a coil joined across the test terminals of the Q-meter.

a) F1 = 2Hz, C1 = 450 pF
b) F2 = 4Hz, C2 = 90 pF

Find out the distributed capacitance of coil.

Electrical & Electronics, Engineering

  • Category:- Electrical & Electronics
  • Reference No.:- M97599

Have any Question? 


Related Questions in Electrical & Electronics

Implement a mod 4 down counter or a counter which counts

Implement a Mod 4 down counter, or a counter which counts 11->10->01->00->11. This counter will require that you modify the state diagram, state transition table, and your program. For this problem submit the state diagr ...

Instructions calculate the circuits by filling in all the

Instructions: Calculate the circuits by filling in all the blanks. 1. Et = 24 volts It = ______ amps Rt = ______ ohms 2. Et = 24 volts It = ______ amps Rt = ______ ohms 3. Et = 12 volts It = ______ amps Rt = ______ ohms ...

A circular loop antenna of radius 1 m in free space carries

A circular loop antenna of radius 1 m in free space carries a uniform current (a) Calculate the amplitude of the electric field intensity at a distance of 10 km in the plane of the loop. (b) Calculate the radiation resis ...

An infinite plane sheet lying in the plane carries a

An infinite plane sheet lying in the plane carries a current of uniform density Find the magnetic field intensities adjacent to the sheet and on either side of it. What is the polarization of the field?

1 a 0635-cm hydraulic line suddenly ruptures 8 m from a

1. A 0.635-cm hydraulic line suddenly ruptures 8 m from a reservoir with a gage pressure of 207 kPa. Compare the laminar and inviscid flow rates from the ruptured line in cubic meters per second. 2. A common type of visc ...

Figure 3012 shows a router using fifo queuing at the input

Figure 30.12 shows a router using FIFO queuing at the input port. The arrival and required service times for seven packets are shown below; ti means that the packet has arrived or departed i ms after a reference time. Th ...

1 how do you find the exact value of the line integral2

1. How do you find the exact value of the line integral? 2. What is the physical significance of the line integral of the earth's gravitational field intensity? 3. What is the value of the line integral of the earth's gr ...

A force f is applied at the tip of the uniform bar shown in

A force F is applied at the tip of the uniform bar shown in the figure. The displacement of the bar is given as u(X) = λX where λ is the principal stretch. The initial length and the cross-sectional area of the bar are, ...

1 what is the total distance around the circumference of a

1. What is the total distance around the circumference of a circle of radius 1 m? What is the total vector distance around the circle? 2. What is the total surface area of a cube of sides 1 m? Assuming the normals to the ...

1 how many points can we have in a dht with m 102 explain

1. How many points can we have in a DHT with m = 10? 2. Explain the problems we encounter if we use IP addresses as the node identifiers in a DHT. 3. Explain two strategies used for storing an object in DHT-based network ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro