Zero net force acts on a loop of wire in a magnetic field when
A. no current is in the loop.
B. no magnetic field lines pass through the loop.
C. both of these
D. neither of these
Answer: C
You might also like to view...
The main difference between weather and climate is that ________
A) weather is the daily variations that actually occur at a location and climate is the general pattern of weather over time B) climate is the regional pattern based on latitude and humidity while weather is the daily pattern based on season. C) climate is a political opinion while weather is reality. D) weather is the regional pattern based on latitude and humidity while climate is the daily pattern based on season. E) climate is the daily variations that actually occur at a location and weather is the general pattern of climate over time
What must be true of a rock unit has an inclusion?
A. The rock unit is older than the inclusion. B. The rock unit is the same age as the inclusion. C. The rock unit is younger than the inclusion.
How many seconds are in a 24 hour day? [Assume exactly 24 hours in a day]
A) 60 B) 1.44 x 10^3 C) 3.60 x 10^3 D) 8.64 x 10^4
Which of the following is the longest term problem associated with properly functioning nuclear reactors?
A) the danger of nuclear meltdown B) radioactive fallout C) storage of radioactive fission products D) thermal pollution