Draw a circuit with two batteries, a resistor between them, and a capacitor in parallel with the resistor. The batteries are connected with the negative pole to the positive pole.

Question

BlackTom AI · Accepted Answer

To tackle this problem, we need to compare each labeled option (A, B, C, D) against the described circuit: two batteries in series with their polarities such that the negative of one battery is connected to the positive of the other, a resistor placed between the batteries, and a capacitor placed in parallel with that resistor. The key features to look for are the correct series connection of the batteries (negative-to-positive linkage creating a combined supply), a single resistor directly between the two battery terminals, and the capacitor connected in parallel with that resistor so that it shares the same two nodes as the resistor.

Option A: If this option shows the batteries connected in series with their polarities additive (negative of one tied to the positive of the other), a resistor placed directly between the two battery terminals, and a capacitor connected in parallel with that resistor (i.e., sharing the same two nodes), then it matches the described configuration. The opening/closing of loops should reflect a closed circuit allowing current to flow through the resistor and charging/discharging the capacitor as appropriate. This option aligns with all the specified elements.
Option B: If this option places the batteries in a different orientation (for example, opening the loop or connecting terminals incorrectly, such as negative-to-negative or positive-to-positive), or places the capacitor in a position that is not directly in parallel with the resistor (for instance, in series with the resistor or connected to a different node), then it deviates from the description. The circuit would not realize the stated parallel arrangement, so this is incorrect.
Option C: If this option omits one of the critical features—such as missing the parallel capacitor, or having the capacitor in parallel with a different branch rather than with the resistor—the circuit fails to match the description. Without the capacitor in parallel to the resistor, the functional relationship between the two components is not as specified.
Option D: If this option shows an entirely different network (for example, more components, different connections between the batteries, or a resistor not bridging the two main nodes), then it does not implement the requested configuration. The presence of extra branches or wrong interconnections would violate the given setup.

In summary, the correct choice should reproduce all the essential elements: two batteries connected in series with opposing terminals joined (negative to positive), a resistor connected directly between the two battery terminals, and a capacitor placed in parallel with that resistor so it shares the same two nodes. The incorrect options fail by misplacing the components, altering their connections, or omitting one of the required elements. If option A embodies exactly these features, it would be the correct depiction per the prompt; the other letters fail to satisfy at least one of the criteria.

Draw a circuit with two batteries, a resistor between them, and a capacitor in parallel with the resistor. The batteries are connected with the negative pole to the positive pole.单项选择题

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