When an electric current exists within a conducting wire, which of the following statements describes the condition of any accompanying electric field?
a. must be perpendicular to current flow
b. must be parallel to current flow
c. must be zero
d. must be anti-parallel (opposite direction) to current flow
B
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Thermal energy will flow in a direction from cold to hot
A) only with external effort. B) near absolute zero. C) never. D) always.
The Egyptian constellation found where modern Orion is located
A rectangular coil with dimensions of 8.0 cm × 10 cm is dropped from a zero magnetic field position to a 1.4 T magnetic field in 0.10 s. The coil has 60 turns and is perpendicular to the magnetic field
What is induced emf in the coil as a result of this? A) 8.6 V B) 2.4 V C) 6.7 V D) 3.6 V E) 0 V