Problem 3 (公式題)
In the figure, we have a circular path of radius \(a\) and the uniform magnetic field is time-varying as \(B(t)=B_0+ct\).
(a)Find an expression for the magnitude \(E\) of the induced electric field at points within the magnetic field, at radius \(r\) from the center of the magnetic field.
(b) Find an expression for the magnitude \(E\) of the induced electric field at points that are outside the magnetic field, at radius \(r\). (02小題)

(a)for \(r \lt a\), \(E\)=_____ [r, a, B_0, c]
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07

輸入你的方程式：  

(b)for \(r \gt a\), \(E\)=_____ [r, a, B_0, c]
分數= 5  可嘗試次數= 2   目前 尚未登入1請從左上角的login登入請先登入

08

輸入你的方程式：