The figure below shows a circuit powered by an ideal battery. The following values are given: R1 = 20?,R2 = 20?,R3 =30?,R4 =8?, ?=12V.
![1495_A circuit powered by an ideal battery.png](https://secure.tutorsglobe.com/CMSImages/1495_A%20circuit%20powered%20by%20an%20ideal%20battery.png)
(a) What is the current through the battery?
(b) What is the current through R2?
(c) What is the current through R3?
(d) Draw the equivalent circuit to the one given.