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A large capacitor has a charge + on one plate and on the other

Physics Jan 12, 2021

A large capacitor has a charge + on one plate and on the other. At time t = 0, the capacitor is connected in series to two ammeters and a light bulb. Immediately after the circuit is closed, the ammeter connected to the positive plate of the capacitor reads Ip and the ammeter connected to the negative plate of the capacitor reads IN. (Figure 1) Each ammeter reads positive if current flows through the circuit in a clockwise direction (from the + to the terminal of the meter).
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Part A Immediately after time t = 0, what happens to the charge on the capacitor plates? Check all that apply. View Available Hint(s) Individual charges flow through the circuit from the positive to the negative plate of the capacitor. Individual charges flow through the circuit from the negative to the positive plate of the capacitor. The positive and negative charges attract each other, so they stay in the capacitor. O Current flows clockwise through the circuit. Current flows counterclockwise through the circuit. Submit Part B At any given instant after t = 0, what is the relationship between the current flowing through the two ammeters, Ip and In, and the current through the bulb, IB? Ip > IB > IN Ip = IB > IN Ip > IB = IN Ip = 1B = IN Submit Request Answer
Part What is the relationship between the current and charge? As the charge q(t) on the positive plate of the capacitor decreases, what happens to the value of the current? O increases. The current O decrea decreases. O does not change. Submit Request Answer

Expert Solution

A) correct options are - Individual charges flow through the circuit from negative to positive plate of capacitor

And current flows clockwise through the circuit..

B) correct option is - Ip = IB = IN

Reason : current in series is same .. Both ammeters are in series with bulb therefore current is same..

C) correct option is - Decreases

Reason - current is directly proportional to charge therefore when charge decreases , current also decrease

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