Job Recruitment Website - Recruitment portal - (20 13? Hefei No.2 model is an experimental device to study the influencing factors of shunt capacitor capacitance. Let the relative area of two plates be s and the distance between plates be d.
(20 13? Hefei No.2 model is an experimental device to study the influencing factors of shunt capacitor capacitance. Let the relative area of two plates be s and the distance between plates be d.
A, according to the definition of capacitance C=? S4πkd, keep S unchanged, increase D, and the capacitance C decreases. Then, according to U=QC, we know that U increases, so θ increases. So, A is right and B is wrong.
C, keeping d constant, increasing S, increasing capacitance, and then according to U=QC, we know that U decreases, so θ decreases. So, the CD is wrong.
So choose one
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