Question 9

What are the voltages (potential difference), VA and VB, across resistors RA and RB measured in the video?
1: V_A : Potential difference across R_A
2: V_B : Potential difference across R_B

Question

Question 9

What are the voltages (potential difference), VA and VB, across resistors RA and RB measured in the video?
1: V_A : Potential difference across R_A
2: V_B : Potential difference across R_B

BlackTom AI · Accepted Answer

When approaching this matching question, we must pair each labeled voltage with the corresponding resistor as shown in the video data.
Option 1 (2.50 V): This value is proposed for V_A, the potential difference across R_A. If the circuit conditions in the video yield a 2.50 V drop across R_A, then this option correctly matches V_A to 2.50 V. The reasoning hinges on the specific resistor values, topology, and supply voltage used in that video scenario, which determine the voltage division across R_A.
Option 2 (4.99 V): This value is proposed for V_B, the potential difference across R_B. If the measured or computed drop across R_B in the video comes out approximately 4.99 V, then this option correctly matches V_B to 4.99 V. This would reflect how R_B sits in the circuit relative to the source and any other parallel or series elements, producing that particular drop.
Option 3 (4.24 V): This value does not align with the two given measurements for V_A and V_B in the provided answer set. It would only be correct if the video data indicated a 4.24 V drop across one of the resistors, but since the supplied answer pair is 2.50 V and 4.99 V, 4.24 V does not correspond to either labeled voltage in this scenario. The mismatch could stem from misattributing the drop to the wrong resistor or from a measurement that does not match the video data.
Option 4 (5.00 V): Similar to 4.24 V, this value is not part of the provided solution pair. A 5.00 V drop would require the entire supply to appear across a single resistor or a circuit with that exact division, which is inconsistent with the recorded pair of 2.50 V and 4.99 V for V_A and V_B in the video. Using 5.00 V would imply a different circuit condition than what the video demonstrated, making it an incorrect match for either V_A or V_B.
In summary, the only values that correctly map to the labeled voltages, given the video data, are 2.50 V for V_A and 4.99 V for V_B. The remaining options (4.24 V and 5.00 V) do not correspond to the measured or stated drops in this particular question context, so they are not correct matches.

Question 9 What are the voltages (potential difference), VA and VB, across resistors RA and RB measured in the video? 1: V_A : Potential difference across R_A 2: V_B : Potential difference across R_B匹配题

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