Ask your own question, for FREE!
Physics 18 Online
OpenStudy (anonymous):

All of the following are examples of electric current except _____? A.Charges flowing in one direction through a circuit B. Charges moving through a conductor C. Electrical discharge from a charged object D. Electrons moving through copper wire

OpenStudy (potatoes.ramu):

C!

OpenStudy (anonymous):

can you explain your answer ? (:

OpenStudy (potatoes.ramu):

Electrical discharge isn't a form of electric current.. Because electric current is continuous, whereas electric discharge only lasts for a short time in comparison. By continuous I mean that current lasts only as long as the power source of the circuit is functioning :)

OpenStudy (anonymous):

thank you (:

OpenStudy (potatoes.ramu):

No problem :)

OpenStudy (anonymous):

You wrap a wire around a piece of iron. If you slowly increase the strength of an electric current flowing through the wire, you would expect _____.

OpenStudy (potatoes.ramu):

The iron becomes magnetised!

OpenStudy (anonymous):

so the magnet would become stronger ?

OpenStudy (potatoes.ramu):

Totally yes, the magnetisation of a wire increases if it has an iron core in it.

OpenStudy (anonymous):

thank you (:

OpenStudy (potatoes.ramu):

No problem :) Just message me if you have any more questions, but bear in mind I haven't studied all this in three years or so, So I'm a little rusty :)

OpenStudy (anonymous):

i think your a great tutor (: deeply appreciated with the help you briefed me with today

OpenStudy (potatoes.ramu):

Happy to help :)

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!