R:v/i - 120 y 0.2A = 600 2 b- La resistividad eléctrica del cobre es de 1,71.10 0.m. Halla la resistencia de un hilo de cobre de 0,5m de longitud y 0,75cm² de área de sección transversal. c- Por un conductor de resistencia eléctrica 1000, circula cierta cantidad de corriente. Si la diferencia de potencial es de 10 V. Halla la intensidad de la corriente eléctrica originada. d- Determina la longitud alambre circular de cobre que posee una resistencia de 0.172 ohm y un diámetro de 11.2 mm. e- Se desea conocer el material del cual está compuesto un determinado conductor y para ello se recurre a la electricidad. Se toman 0,5m del mismo, con una sección transversal de 4.10-4m² y se comprueba que su resistencia eléctrica es de 0,9miliohm. ¿De qué material se trata? f- Un hilo de aluminio de 1,5m de longitud tiene una resistencia de 100. Utilizando la resistividad proporcionada por el cuadro, halla el área de la sección transversal que deberá tener el hilo. g- En el siguiente gráfico de un circuito, ¿qué valor tiene la corriente que circula por el mismo? R=100~\Omega V=230 V

they should be similar or the same

elly's long hair:

a. if the salon only takes cash, then this isn't the problem. it doesn't matter how much she has in her checking account.   she can't get a haircut until she has the cash.

b. if she has overdraft protection, then there's no problem.   she can go ahead and write a check that her account can't cover, then sometime later, pay the bank some outrageous usury for loaning her a few bucks for a few days, but with beautiful hair.

c. if elly has some principles, and doesn't want to write a bad check, then now she has a problem.   her desire for the new hairstyle is in conflict with her honesty and integrity.

d.   if the bank will not process a check she writes, then even if she had a million $$ in her account, she couldn't use any of it.   the amount she has in her account is not the problem.   and if i may suggest, she might as well close her checking account, and put the money where it'll work for her.   it's not doing her a bit of good in a checking account, since she can't write any checks.

justin can't pay the full balance:

a. he can't even handle the credit limit he has now.   under no circumstances should he ask for a higher limit.

b.   he can ask for the grace period to be extended.   but that's no solution, the bank will almost certainly refuse anyway, and there are much better options.   he knew the rules of his credit card when he started using it.

c.   he definitely should pay the interest on the balance, plus as much of the balance as he can cover at the same time.

d.   he definitely should pay the minimum otherwise they could shut down his card.   he should also pay as much more as he possibly can.   he should also remember the awkward situation he's in, stop buying stuff on credit that he can't afford, and avoid adding any more debt.

i'd say that justin's best best option isn't on this list of choices.   what he has to do:   pay as much as he can at least the minimum payment plus as much more as he can and then avoid adding more debt.

adding a(n) to an electric circuit would increase the magnetic field around a wire;

b. solenoid

a solenoid is a type of electromagnet whose purpose is to generate a controlled magnetic field.

if the purpose of the solenoid is instead to impede changes in the electric current, a solenoid can be more specifically classified as an inductor rather than an electromagnet.