In the diagram above the current I is - JAMB Physics 2001 Question
A
3/8
B
9/11
C
11/9
D
8/3
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Correct Option: B
| I = | _E |
| R+r |
For parallel of 5Ω and 10Ω
1/R = 1/10 + 1/5 = 1+2/10 = 3/10
∴R = 10/3
Total R = 31/3 + 3 x 1 = 71/2
∴I = 6/71/3 = 6/1 x 3/22 = 18/22 = 9/11
∴I = 9/11
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