- #1

longk

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## Homework Statement

At a certain place, Earth's magnetic field has magnitude B = 0.590 gauss and is inclined downward at an angle of 77.5° to the horizontal. A flat horizontal circular coil of wire with a radius of 10.0 cm has 1000 turns and a total resistance of 55.5 . It is connected in series to a meter with 140 resistance. The coil is flipped through a half-revolution about a diameter, so that it is again horizontal. How much charge flows through the meter during the flip?

## Homework Equations

[tex]\phi[/tex]=[tex]\int[/tex](B)(da)cos [tex]\theta[/tex]

emf=-N([tex]\frac{d\phi}{dt}[/tex])

i=[tex]\frac{dq}{dt}[/tex]

## The Attempt at a Solution

now since i don't know how to approach the problem myself, i was thinking along the lines of using farady's law to find the change of the flux from the initial position to when end point and from there getting the emf and with the induced emf the current and from the current the amount of charges that flow through the wire, i was thinking of going that way but since the time is not given or any angular speed and such i have no other clue on how to approach the problem, i don't know if this counts as an attempt since I'm a bit of a noob here but if it doesn't ok

is this problem able to be solved without mention of time?