I believe it’s b..... hope this helps pls tell me if I’m wrong! <3
Answer:
B = 0.287 Tesla
According to thumb rule the direction of magnet is to the east.
Explanation:
F = BiL sin∅
note that F = mg
B = magnetic field
i = current
therefore,
mg = BiLsin∅
Make B subject of the formula
B = mg/iLsin∅
m/L = mass per length of the wire and it is given in gram per centimeter . It should be converted to kg per meter.
m/L = 0.440 g/cm
convert to kg/m = 0.440 × 0.001 kg × 100 m = 0.044 kg/m
B = 9.8 × 0.044 / sin 90 × 1.50 × 1
B = 0.4312/ 1.50
B = 0.28746666666
B = 0.287 Tesla
According to thumb rule the direction of magnet is to the east.
The key factor that kept the Copernican is that Roman Catholic Church had decided that earth was the center of the universe and contrary opinions were heresy. The Copernican also proposed that a heliocentric system had decided the the Earth is the center of the universe and all of the contrary opinions regarding this was false.