- Joined Oct 15, 2020
The question implies that the particular value of R doesn't matter. So pick a value of R that makes things easy for you.
No need to guess -- the resistance of each resistor is R.Why doesn't the question say the resistor values?
Is the student supposed to guess that they are all the same?
This exam question is so simple that I did it without writing down anything.
It's 3 V because that is the given condition. If you get to question whether it is -3 V instead, then you can just as validly question whether it is -98.2 V instead. It is a GIVEN that it is 3 V.Isn't it -3V? No-one said where the power supply was connected. It could quite feasibly be between b and c, and no-one said that a and d were connected to anything at all.
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