Answer:
B=0.2T
Explanation:
given required solution
l=4m B=? <em>F</em><em>=</em><em>BIL</em>
i=0.5A B=F/IL
F=0.4N B=0.4N/0.5A*4m
B=0.4/2=0.2T
Metal
Explanation:
semiconductors are materials which have a conductivity between conductors (generally metals)
Answer:
the object is decelerating