RAD 125 Final Exam CORRECT QUESTIONS & ANSWERS(RATED A)
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Course
RAD 125
Institution
RAD 125
What is the maximum number of electrons permitted in the outer shell of an electron? - ANSWER 8
If 240 Volts is applied across a resistance of 4 ohms, what is the current? - ANSWER 60 amps
What year were x-rays discovered? - ANSWER November 8, 1895
What is electron binding energy? - ANSWER...
RAD 125 Final Exam CORRECT
QUESTIONS & ANSWERS(RATED A)
What is the maximum number of electrons permitted in the outer shell of an electron? - ANSWER 8
If 240 Volts is applied across a resistance of 4 ohms, what is the current? - ANSWER 60 amps
What year were x-rays discovered? - ANSWER November 8, 1895
What is electron binding energy? - ANSWER Energy required to remove an electron from its orbital shell
Inverse square law should be applied to: - ANSWER intensity of radiation, force of electrostatic charges,
and force of magnetic fields
What is true about transformers - ANSWER Work efficiently with alternating current, designed to
regulate voltage, and no moving parts
What methods may be used to electrify an object? - ANSWER Contact and friction
What is the best definition for kinetic energy? - ANSWER Energy being expended
true or false? All electromagnetic radiation travels at the same speed. - ANSWER true
What best describes the relationship between frequency, wavelength, and energy? - ANSWER Energy
increases, wavelength decreases, and frequency increases
What occurs during the process of mutual induction? - ANSWER Current is transferred from one coil to
another
, What is the maximum number of electrons that the N shell can hold? - ANSWER 32
A motor is a device that converts what? - ANSWER Electrical energy into mechanical
When the bond between two atoms is due to their sharing an outer shell electron, this is called a what? -
ANSWER Covalent bond
Potential difference is measured using what unit? - ANSWER volts
Term that defines the same number of protons, but different number of neutrons: - ANSWER isotopes
If an atom has the same number of electrons and protons, it is what? - ANSWER electrically neutral
Which statement is true regarding electric insulator? - ANSWER inhibits movement of electrical charge
Three fundamental parts of an atom are: - ANSWER neutrons, electrons, and protons
Which statement is true? - ANSWER Wavelength is inversely proportional to frequency
Which of the following is___ considered a form of electromagnetic energy: - ANSWER UV light and x-rays
If an atom has more protons than electrons, which is true? - ANSWER has a positive charge
In an atom, which shell has the greatest energy? - ANSWER K
Which of the following devices converts mechanical energy into electrical energy? - ANSWER generator
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