En un punto ubicado a 12mm de distancia de un conductor recto se tiene una induccion de 4x10-4T. Si el conductor se encuentra en el aire ¿cual es el valor de su corriente?

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.

when jerome paddle in flowing river towards east the net speed of jerome will increase

so the net speed of jerome will be given as

now the speed of paul will be same as it is given as he is running on the ground

so

so here we can say since the speed of jerome is more so he will win the race

now as we know the distance so the time difference is given as

so jerome will reach first and the time difference will be 203.55 s or 3.4 min

there are no components of a physical goal mentioned on the list of choices that you've provided.

its lower due to the doppler effect.: apex