A level Physics Electricity Question
Question 16, Multiple choice question which I don't really understand. I have the answer already but don't understand how to get there. I tried subbing the given variables into V=IR etc, which didn't really help.
https://drive.google.com/file/d/1hlNhvAkUduiyAZNBXpXmL2Hzoe8mhUiv/view?usp=sharing
The Choices are
A - I/3
B - 4I/9
C- I/2
D - 2I/3
(Incase it's not clear in the picture)
https://drive.google.com/file/d/1hlNhvAkUduiyAZNBXpXmL2Hzoe8mhUiv/view?usp=sharing
The Choices are
A - I/3
B - 4I/9
C- I/2
D - 2I/3
(Incase it's not clear in the picture)
Consider the first circuit
Draw it
Find that 4 IR = 3 V
Second circuit drawn
Now in reverse, the cell PD opposes the other two cells
2V - 1 = 4 iR (new I = i)
Ratio of 1V / 3V = i/I = 1/3 = ratio of currents
Hence 1/3
Original post by Callicious
Consider the first circuit
Draw it
Find that 4 IR = 3 V
Second circuit drawn
Now in reverse, the cell PD opposes the other two cells
2V - 1 = 4 iR (new I = i)
Ratio of 1V / 3V = i/I = 1/3 = ratio of currents
Hence 1/3
Consider the first circuit
Draw it
Find that 4 IR = 3 V
Second circuit drawn
Now in reverse, the cell PD opposes the other two cells
2V - 1 = 4 iR (new I = i)
Ratio of 1V / 3V = i/I = 1/3 = ratio of currents
Hence 1/3
https://drive.google.com/file/d/1iUAawZTj0e2ZI_1KdozczN3lbY7OgPAL/view?usp=sharing
Got it. Thank you again appreciate it
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