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212CheatsheetEX22 - B= oi Center of arc of 4R radius...

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τ = (NiA)Bsinθ . = μBsinθ n=(Bi)/(Vle) charge cariers per unit volume V=Ed (Hall pot. Diff) B = μ o Center of arc of 4πR radius Φ radians B = ( μ o ir ) inside straight (2πR 2 ) wire Suppose the current charging a capacitor is kept constant. Which graph below correctly gives the potential difference V across the capacitor as a function of time? A hollow cylindrical conductor (inner radius = a , outer radius = b ) carries a current i uniformly
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