A transformer is a device that normally
A) operates on either dc or ac.
B) operates only on ac.
C) operates only on dc.
B
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The rings of Saturn are created from and controlled by the planet's moons
a. True b. False Indicate whether the statement is true or false
If a nucleus decays by gamma decay to a daughter nucleus, which of the following statements about this decay are correct? (There may be more than one correct choice.)
A) The daughter nucleus has more protons than the original nucleus. B) The daughter nucleus has more neutrons than the original nucleus. C) The daughter nucleus has the same number of nucleons as the original nucleus. D) The daughter nucleus has fewer protons than the original nucleus. E) The daughter nucleus has fewer neutrons than the original nucleus.
Consider a uniform electric field of 50. N/C directed toward the East. If the voltage measured relative to ground at a given point in the field is 80. V, what is the voltage at a point 1.0 m directly East of the point?
A) 15. V B) 30. V C) 0.15 kV D) 30. kV E) impossible to calculate from the information given
An atom that has fewer electrons than protons is called a/an
A) molecule. B) solid. C) ion. D) plasma.