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RAD106 Exam 2

QuestionAnswer
Visible light is identified by __________ and x-rays are identified by ___________. wavelength; energy
__________ is one half the range from crest to valley over which the sine wave varies. amplitude
An x-ray photon is a quantum of __________ energy. electromagnetic
Planck’s constant, symbolized h, relates the energy in one quantum (photon) of electromagnetic radiation to the ______________ of that radiation. Frequency
The inverse square law states that the intensity of electromagnetic radiation is ________ related to the ______ of the distance from the source. inversely, squared
At a given velocity, wavelength and frequency are _____________ proportional. inversely
The energy of a photon is ________________ proportional to its frequency. directly
________ is the number of wavelengths that pass a point of observation per second. frequency
The autotransformer has one winding and is used to vary ________ and __________. voltage, current
According to Faraday’s law, the magnitude of the induced electric current depends on which factor? The variation of magnetic field intensity
Electrostatics is the study of __________ electric charges. stationary
Electrodynamics is the study of __________ electric charges. mobile
The magnetic intensity of an electromagnet is greatly increased by the addition of a(n) __________ core. iron
Like magnetic poles ________ and unlike magnetic poles ________. repel, attract
What type of material can be made magnetic when placed in an external magnetic field? ferromagnetic
The force between magnetic poles is proportional to the ________ of the magnetic pole strengths, divided by the ________ of the distance between them. product, square
Water is a ___________ material. diamagnetic
Electrical power is measured in ____ watts
Created by: rbats
 

 



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