The flux through the coils of a solenoid changes from
6.78*10^-4 Wb to 1.33*10^-4 Wb
in 0.0333 s. If the solenoid has
605 loops, how much EMF is
generated?
(Unit = Volts)

firearm identification is the process of analyzing the bullets and cartridge cases left at a crime scene to determine if they came from a particular firearm. marks on the bullets and cartridges may be common to every firearm of that type. these are called class characteristics.

the minimum amperage that the current in this wire would have to have so that its weight is completely supported by the magnetic force due to earth's field, assuming that no other forces except gravity act on it

r = ρ x length / area  

ρ = r x area / length  

ρ is in ohm-meters  

in basic units, it is m³kg/s³a²  

i think this is it.

this would be about 43%