AMT GENERAL TEST GUIDE
the working voltage of a capacitor in an AC circuit shoulw be - at least 50 percent greater than the highest applied voltage
the term that describes the combined resistive forces in an AC circuit is - impedance
what is the opposition to the flow of AC produce...
the working voltage of a capacitor in an AC circuit shoulw be - at least 50 percent
greater than the highest applied voltage
the term that describes the combined resistive forces in an AC circuit is - impedance
what is the opposition to the flow of AC produced by a magnetic field with generated
back voltage (EMF) called? - inductive reactance
electrostatic fields are also known as - dielectric fields
The basis for transformer operation is in the use of alternating current is mutual -
inductance
The opposition offered by a coil to the flow of alternating current is called (disregard
resistance) - inductive reactance
what factors strengthen a coil inductor - adding coils close together
an increase in which of the following factors will cause an increase in the inductive
reactance of a circuit - inductance and frequency
when the different rated capacitors are connected in series in a circuit, the total
capacitance is - less than the capacitance of the lowest rated capacitor
Capacitors are sometimes used in DC circuits to - smooth out slight pulsations in
current/voltage.
In an AC circuit, the effective voltage is - less than the maximum instantaneous voltage
The amount of electricity a capacitor can store is directly proportional to the - plate area
and inversely proportional to the distance between the plates
What is the total capacitance of a certain circuit containing three capacitors with
capacitances of .02 microfarad, .05 microfarad, and .10 microfarad, respectively - .0125
uF
What is the total capacitance of a circuit containing three capacitors in parallel with
capacitances of .02 microfarad, .05 microfarad, and .10 microfarad, respectively - .170
uF
, Convert farads to microfarads by - multiplying farads by 10 to the power of 6
Convert farads to picofarads by - multiplying farads by 10 to the power of 12
unless otherwise specified, any values given for current or voltage in an AC circuit are
assumed to be - effective values
When different rated capacitors are connected in parallel in a circuit, the total
capacitance is - equal to the sum of all the capacitances
When inductors are connected in series in a circuit, the total inductance is (where the
magnetic fields of each inductor do not affect the others) - equal to the sum of the
individual inductances
When more than two inductors of different inductances are connected in parallel in a
circuit, the total inductance is - less than the inductance of the lowest rated inductor
What is the total capacitance of a certain circuit containing three capacitors with
capacitances of .25 microfarad, .03 microfarad and .12 microfarad, respectively - .4 uF
Which requires the most electrical power during operation - two lights requiring 3
amperes each in a 24-volt parallel system
How much power must a 24-volt generator furnish to a system which contains the
following loads - 450 watts
A 12-volt electric motor has 1,000 watts input and 1 horsepower output. Maintaining the
same efficiency, how much input power will a 24-volt, 1-horsepower electric motor
require - 1,000 watts
How many amperes will a 28-volt generator be required to supply to a circuit containing
five lamps in parallel, three of which have a resistance of 6 ohms each and two of which
have a resistance of 5 ohms each? - 25.23 amperes
A 1-horsepower, 24-volt dc electric motor that is 80 percent efficient requires 932.5
watts. How much power will a 1-horsepower, 12-volt dc electric motor that is 75 percent
efficient require? - 994.6
The potential difference between two conductors which are insulated from each other is
measured in - volts
Which effect does not apply to the movement of electrons flowing in a conductor? -
Static energy
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Mboffin. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $14.99. You're not tied to anything after your purchase.
