One day, I was out bicycling when a thunderstorm cropped up. While frantically pedaling home at a speed of $10~\mbox{km/hr}$, a wind blew a power line down and it brushed against the inside of my front wheel, putting a positive $1~\mbox{C}$ charge on the wheel. I kept pedaling. If my bicycle wheels have radius $0.3~\mbox{m}$, what is the magnitude of the generated magnetic field **in Teslas** that I on my bike would measure at a distance of $0.1~\mbox{m}$ perpendicular from the center of my front wheel?

**Details and assumptions**

- Treat the wheels as thin conducting hoops.
- You may assume the charge has spread out over the wheel but not left it yet.
- My bike wheel was not slipping on the ground as I traveled.
- The vacuum permeability is $\mu_0=4\pi \times 10^{-7}~\mbox{H/m}$.

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