Write down any four points that should be considered during household wiring
2 answers:
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The force generated by a magnetic field B perpendicular to a wire carrying a current I is
where L is the length of the wire.
If we divide both sides for L, we get
where the ratio on the left is the force per meter of length, which is exactly what we want to find. So:
where L is the length of the wire.
If we divide both sides for L, we get
where the ratio on the left is the force per meter of length, which is exactly what we want to find. So:
Answer:
1400 N
Explanation:
Change in momentum equals impulse which is a product of force and time
Change in momentum is given by m(v-u)
Equating this to impulse formula then
m(v-u)=Ft
Making F the subject of the formula then
Take upward direction as positive then downwards is negative
Substituting m with 0.3 kg, v with 2 m/s, and u with -5 m/s and t with 0.0015 s then