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Physics electricity

can someone help answer these questions
Original post by bl64
can someone help answer these questions


may I please suggest that you show your attempt so we know how we can help you
Reply 2
I know I= I1 +I2
and v= IR

but have no idea about how the relationship between V and I1 R1 and V and I2 R2
Reply 3
Original post by jsmith6131
may I please suggest that you show your attempt so we know how we can help you


Good idea as the question is nonsense.
Original post by bl64
I know I= I1 +I2
and v= IR

but have no idea about how the relationship between V and I1 R1 and V and I2 R2


good
(a) I = I1 + I2
(b)i V in parallel is the same in both branches so
V=I1 * R1
(bii) V=I2*R2
(biii) V=IR
---
(c)
no idea
Reply 5
Original post by bl64
I know I= I1 +I2
and v= IR

but have no idea about how the relationship between V and I1 R1 and V and I2 R2


Stupid question.
There is none as there are no values.
Reply 6
Original post by jsmith6131
good
(a) I = I1 + I2
(b)i V in parallel is the same in both branches so
V=I1 * R1
(bii) V=I2*R2
(biii) V=IR
---
(c)
no idea


thanks
Original post by bl64
thanks


glad I helped. in future it is a good idea to show your attempt originally. it will encourage others to answer too!!
Reply 8
Original post by jsmith6131
glad I helped. in future it is a good idea to show your attempt originally. it will encourage others to answer too!!


ok
Reply 9
I=I1+I2 (Kirchoff's current law)
Thus, V/R=(V/R1+V/R2) (Voltage remains same in parallel)
Thus, eliminate V
Original post by TerryBear
Stupid question.
There is none as there are no values.


It's not a stupid question... you don't need values for there to be a relationship
In that case, it must have changed since I studied Electronics.
(edited 9 years ago)

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