Did I do this question correctly? (Loop Rule Q)

A 9.0 V battery has an internal resistance of 0.50 ? and is connected to 5 resistors, as shown in the figure below. A) What is the equivalent resistance of all the resistors (not including the internal resistance of the battery)? B) What is the total current in the circuit? C) What is the voltage across the 10.0 ? resistor?

What I’ve did:
(1/req) = 1/R1 + 1/R2 + 1/R3
(1/8) + (1/4) = 3/8 (or 2.7)
2.7 + 6.0 = 8.7
(1/8.7) + (1/10) = 187/870 (or 4.7)
4.7 + 5.0 + 0.5 = 10.2
I = V / R I = 9.0 / 10.2 = .88 A
A.) 10.2 ?
B.) .88 A

C.) Voltage Across 5 = .88 x 5 = 4.4 V
So, voltage across 10 = 9-4.4 = 4.6 V

PLEASE TELL ME IF ALL OF THIS RIGHT. I need to get this problem correct. The circuit is attached.

Attached Images
File Type: jpg Problem I – Text.jpg (22.3 KB)

http://ift.tt/QxgvU7

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