guys, here's my question:
A long solenoid has circular cross section of radius R. The solenoid current is increasing, and as a result so is the magnetic field in the solenoid. The field strength is given by B = bt, where b is a constant...
ahhh, it'll go down to zero ...thanks !
one more thing, when will the voltmeter read zero ?
i'm thinking since it measures potential between two points it will be zero wherever there is a clear path between the two points: "D" ... sounds right ?
Homework Statement
In which diagram(s) (labeled A - D) does the ammeter correctly measure the current through the battery?
The Attempt at a Solution
I know that ammeters measure the current in series, and that the voltmeter won't have any effect on its reading, but I'm confused about the...
Homework Statement
In general, if a sound has intensity of beta dB at 1 m from the source, at what distance d_0 from the source would the decibel level decrease to 0 dB? Since the limit of hearing is 1 dB this would mean you could no longer hear it.
Express the distance in terms of beta. Be...
ok, so i know its Rsinwt(x) + RCoswt(y) and the initial position was just R(y)
so, relative to the initial position it should be Rsinwt(x)+(R(y)-RCoswt(y))
doesnt sound right, does it ?