WorksheetsAC
Total questions: 37
Worksheet time: 23mins
What is an invisible force that has the ability to attract ferrous metals
Magnetism
Line of force
Field strength
Electromagnetism
what is the space surrounding the a magnet where the magnetic force is felt
Lines of force
Magnetic field
Magnetism
Electromagnetic force
What are the lines used to illustrate and describe the pattern of magnetic force
Magnetic field
Field strength
Lines of force
Magnetism
when a current flows through a conductor it creates a magnetic field around the conductor is called
Electromagnetism
Magnetism
Field strength
Lines of force
When the current produces a magnetic field around a conductor is called
Blah
magnetic field
Strength field
Electromagnetic field
What is the number of turns of the conductor in the coil
Field strength
Line of force
Magnetic field
blah
(a) flows in only 1 direction and can change magnitude but not polarity
(a) Changes magnitude and polarity
What is a physical activity that rises and falls periodically
Wave
Waveform
AC waveform
DC waveform
what is a graphic representation of the shape of a wave that indicates characteristics
AC
Wave
Waveform
DC
What is the plot of a current or voltage which constantly changes in amplitude and direction
AC
AC waveform
wave
Waveform
What occurs when a wire when the magnetic or wire is moved
Electromagnetic Induction
Ac Generator
Frequency
Magnetic field
What is a device that converts mechanical energy into electrical energy
Wire
Computer
Meter
AC generator
What is the # of cycles per second that is in a direct rotation
Magnetic field
Frequency
AC
AC generator
what is a period
The time is takes to create 1 cycle
Time it creates to take 2 Cycles
A positive and negative alternation
What does one cycle of AC consist of
A negative and positive
a negative
A positive
None
What is the test instrument that makes visible instantaneous values of an electrical waveform
Nider Trainer
Tektronix
Oscilloscope
Meter
What is the property of a component or circuit that opposes any change in current
Inductance
Inductor
Henry’s
Coil
What is an inductive device created by looping turns of wire around a core
Inductor
Meter
Nida Trainer
Oscilloscope
What unit of measurement is used for inductance
Henry
Inductor
Waveform
Wavelength
What is the opposition of inductance of a coil that offers to an alternating current
Inductive reactance
AC circuit
Inductance
Electromagnetic Induction
what is an action that causes EMP to be induced in a conductor or coil as it moves relative to a magnetic field
Electromagnetic
Inductance
Electromagnetic induction
Inductive reactance
What is an electrical device capable of strong energy in an electrostatic field
Capacitor
Inductor
Reactor
Resistance
What do inductors start off as and then into what
Start as an open, then into short
Start as short, turn into open
What do capacitors start out as and then turn into
Start as a short and then turn into an open
Start as a open and then turn it into a short
The capacitance of a capacitor is directly proportional to the dialectic
(a)
The capacitance is directly proportional to the plate area
(a)
The capacitance is inversely proportional to the plate
(a)
___ is the maximum safe voltage that can be applied to a capacitor
Voltage rating
Properties in circuits
AC circuits
Which have no charge and acts as a short
DC circuit
AC circuit
Which one has a capacitor that is constantly changing in both amplitude and polarity
AC circuit
DC circuit
A ____ is a device that transfers energy from one circuit to another through electromagnetic induction
Transformer
Magnetic Field
Coil
Inductor
The (a) is the input from the AC source
The (a) is the output to load
___ is a measure of the amount of inductive coupling that exists between 2 coils. Measured in Henry’s
Mutual inductance
Inductor
Inductance
Transformer
____ depends upon the direction windings are wound
Voltage
Amplitude
Polarity
Circuit
Transformers are related according to ability to handle: voltage, current, power
(a)
