Capacitance Study guides, Class notes & Summaries

PHYS 1260 Exam 3 DeWitt Version 1 Questions and Answers. Select ONE answer for each numbered problem. If you choose more than one on the Scantron sheet, you will be marked incorrect on that problem. Data Rate=(Number of Channels)x(samples/second)x(bits/sample) Capacity=(Number of Channels)x(Bandwidth/Channel)xlog2(SNR+1) SNR = Signal Power/Noise Power AM = Amplitude Modulation FM = Frequency Modulation PM = Phase Modulation FET = Field Effect Transistor RAM = Random Access Memory Capa...

The 2 main considerations concerning the existing cabling are? - correct answer Grandfathered system Abandoned cable 11-25 The type of cutover where cross-connects are relocated one pair after another until completed is called a - correct answer rolling cut 11-28 Which practice involves moving the customer to a temporary office space until their section of the retrofit is completed and then moving them back to their recabled office space? - correct answer Swing space phasing Whic...

What is the name of the invisible force that is created around the wire when electrons flow through a wire? Magnetic field What is electromagnetism? The creation of a magnetic field by the flow of electric current is referred to as electromagnetism. What does winding the conductor into a coil cause? Winding the conductor into a coil causes the magnetic field to become stronger. The ____________ of the field increases as the number of windings (turns) increases. Strength ...

CETA Study Guide Questions With All Complete Solutions 8.33 meters is the full wavelength in air for what RF frequency? - ANSWER- 36 MHz Decimal 164 would appear as what in binary? - ANSWER- A resistor has color stripes yellow, violet, violet, silver. It is? - ANSWER- 470 MegOhm +/- 10% What is the total capacitance of three capacitors valued at 100uf, 100uf and 50uf when connected in series? - ANSWER- 25 pf What is the ripple frequency of a full wave single phase bridge rectif...

ATT Test 3 Questions and Answers (Graded A) Henry - ANSWER ️️ The basic unit of inductance Contracts - ANSWER ️️ If the circuit current decreases, the magnetic field of an inductor Concentrate a magnetic field - ANSWER ️️ The inductor is used to varies - ANSWER ️️ The physical appearance of inductors Print or color code - ANSWER ️️ Inductors have the value of their inductive capacity by Air and iron - ANSWER ️️ The common inductors are Core type - ANSWER ️️ I...

What is the most important law applicable to the study of electricity? - Ohm's Law What are the elements of Ohm's Law? - Voltage, Current & Resistance What are four sources of electrical power? - Mechanical, chemical, photoelectric and thermal What does an electrical circuit consist of? - 1. a source of electrical pressure 2. resistance 3. conductors What represents capacitance in an AC circuit? - a capacitor What is the function of a capacitor? - to store electricity What is the unit...

Level 2 Module 1 Alternating Currents 2:1 What is the step-down turns ratio of a transformer with 200 turns in the primary and 100 turns in the secondary? induced high voltage Opening the secondary of a CT under load will cause a dangerous level of___. 40Hz What is the hertz rating of an AC circuit if the frequency is 20 cycles per 1/2 second? 340V Given: A circuit has an rms voltage of 120VAC. What is the peak-to-peak voltage? 175V A circuit has a peak voltage of 275V....

AC Theory, Level 2 Final Test prep 2024 1.) A circuit that contains resistance and capacitance is called an RC circuit. - ANSWER True For a series RC circuit, the ? must be the same through all parts of the circuit. - ANSWER Current When solving a series RC circuit, the voltage is the reference. - ANSWER False What is the total resistance of the circuit shown? - ANSWER 11 Ω What is the total capacitance of the circuit shown? Calculate to the nearest whole number of the unit specifi...

Zener current will decrease - ANSWER-Refer to figure 1. If the load resistance R2 is reduced by half what happens what happens to zener diode? 4v - ANSWER-Refer to figure 1. The zener diode is designed to breakdown at 6VDC what is the voltage drop across R1 with a constant DC supply of 10VDC 30 rpm - ANSWER-An elevators motor rotates at 1200 rpm at contract speed and is geard at a ratio of 40:1. If the motor turns 40 rpm the sheave turns 1 rpm. What is the actual speed of the drive sheave ...

The 2 main considerations concerning the existing cabling are? - Answer- Grandfathered system Abandoned cable 11-25 The type of cutover where cross-connects are relocated one pair after another until completed is called a - Answer- rolling cut 11-28 Which practice involves moving the customer to a temporary office space until their section of the retrofit is completed and then moving them back to their recabled office space? - Answer- Swing space phasing Which of these testers would yo...