A square coil (length of side = 24 cm) of wire consisting of two turns is placed in a uniform magnetic field that makes an angle of 60° with the plane of the coil. If the magnitude of this field increases by 6.0 mT every 10 ms, what is the magnitude of the emf induced in the coil?
a. 55 mV
b. 46 mV
c. 50 mV
d. 60 mV
e. 35 mV
d
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When the surface of the reactive metal titanium is passivated, _________ forms on the surface of the metal.
Fill in the blank(s) with the appropriate word(s).
In the hydrogen atom the potential energy is negative, but the absolute value of the potential energy:
a. is half the kinetic energy of the electron. b. is equal to n2 times the kinetic energy of the electron. c. is equal to the kinetic energy of the electron. d. is twice the kinetic energy of the electron.
Compare the internal energy of one gram of steam to that of one gram of water if both are at 100°C.
A. The internal energy of the water and steam are the same B. The internal energy of the steam will be higher C. The internal energy of the water will be higher
The structural region of Earth that has the greatest volume is the
a. crust. b. outer core. c. mantle. d. inner core.