TS EAMCET 03 May 2019 Shift 2 Solved Paper

The following figure shows the required circuit.
Calculate the value of Req1
Req1‌‌=‌

15×5

15+5

‌‌=‌

15

4

Ω
Calculate the value of Req2
Req2=4Ω
The current through branch one is calculated as,
I1=‌‌‌

45

Req1

‌‌=‌

45

15

‌‌=12A
The circuit can be redrawn as shown below,
In a series circuit the current flows is same, therefore,
Vab‌‌=IabReq(ab)
‌‌=12(‌

15

4

+4+10)
‌‌=213V