consider the ﬁgure showing two batteries with emf E1 = 48 V and E2 = 36 V and internal resistances r1 = 9 and r2 = 9 connected to resistors R1 = 10 and R2 = 20 forming a closed circuit. What is the current through R2?

Question

consider the ﬁgure showing two batteries with emf E1 = 48 V and E2 = 36 V and internal resistances r1 = 9 and r2 = 9 connected to resistors R1 = 10 and R2 = 20  forming a closed circuit. What is the current through R2?

anonymous · Answer

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anonymous · Answer

I honestly dont know this but maybe this will help http://ryehigh.daremedy.com/notes/view-notes-pcs110-007

nali · Answer

Let me give you some rules to memorize when doing  a series combination resistor problem. 

1. each resistor gets I total for that combination
2. Voltage of the resistors add up to V total
3. R total = R1 + R2 + ... 

I will use these simple rules and with practice it is easier to do these types of problems |dw:1398393583433:dw|

nali · Answer

using the three rules from above, the 1st rule says I total is the same for each one so you do NOT have to find the individual currents

nali · Answer

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