I need the correct answer to this question. Could someone please help me with it.
Please see attachment for the question.
Thank you
Please see attachment for the question.
Thank you
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Absolutely not. If this was the intent, then the problem should have shown an ideal voltage source instead of a battery. Batteries are known to be horrible voltage sources with large internal resistance. To propose a battery in the question and then supply answers that relate to an internal source resistance (i.e. answers A and B) is misleading. This is either a mistake, or an unfair trick question.I stand by my statement. A-B will always show the battery voltage. The point of the question is to see if the student can follow a simple circuit.
"Assuming no change to the float voltage..."
Requires a much more advanced understanding.
There is ONE answer allowed. C is the best fit.
All three statements are true. If you prefer one answer over another, that's fine. I would pick C too if forced to give one anwser. However, this doesn't change the fact that it's a trick question, if you are only allowed to pick one answer. If the problem said that the battery was ideal and hooked up using superconducting wires, I would change my opinion.C) is the correct answer, as it covers all cases.
A) and B) are only partial answers.
Only if you assume ideal wires and ideal chassis ground. I know you will say that it is standard practice to assume those schematic symbols (ground, wires, switches) represent ideal devices. Fine. - Then in that case they should use the accepted schematic symbol for an ideal battery, not a pictorial representation that looks like a real car battery. Or, they should state that the battery should be assumed ideal.Is definitely C . No matter what is across a battery the battery voltage will prevail as C
C is not the only correct answer if you assume a realistic model for the battery. The question is vague about whether the battery is ideal or real. Thus, it is a bad question. What makes the question worse is that C is not a good answer in the real world. In other words, the idealized circuit represents a car battery in a car with chassis ground with horn and lights. Real car grounds are not perfect and real wires are not zero resistance. Therefore C is not true in the real world, while A and B are true in the real world.The points at A and B will indeed measure the battery voltage. They will do so regardless of whether the battery is loaded down or not, charged, discharged, charging, discharging, overcharged, dead, or transcendental.
"C" is the correct answer. "C" is the only correct answer.
by Duane Benson
by Jake Hertz
by Jake Hertz