Find the potential difference (delta V) between points C and D?

S1 and S2 are closed switches. There are two resistors, with R1 = 10 ohms and R2 being unknown. The current through R1 is 1.2 F, and the emf gives 12 V.

?2019-04-19T05:54:45Z

Favorite Answer

Because S2 is closed, the resistance between C and D is zero because R2 is short circuited. Therefore the potential difference between C and D is 0 Volt (no energy is needed to let a current go through a zero resistance)

21

oldschool2019-04-19T10:09:50Z

The voltage across R1 = 1.2A*10Ω = 12V = Vbc so there can't be any voltage across R2 = Vcd. KVL is satisfied

11

oubaas2019-04-19T06:10:08Z

If you parallel 0 and R2, then Rp = R2*0/(R2+0) = 0
Vcd = Rp*I = 0*I = 0

11

Trending Questions

Could an island like Guam really tip over if it had too many people on it ?6 answersDid the SPCA ever go looking for this Shrodinger cat?9 answersThree confused sleigh dogs are trying to pull a sled across the Alaska snow. One dog pulls east with a Force of 35N. ?6 answersWhat is this new cat in the box theory about?5 answersIs it possible to make an artificial black hole and use it to generate electricity?5 answers