What is the voltage v in the circuit diagram ?

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UPSC IES Electrical 2022 Prelims Official Paper
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  1. 7.5 V
  2. 16.5 V
  3. 12.5 V
  4. 14.4 V

Answer (Detailed Solution Below)

Option 3 : 12.5 V
Free
ST 1: UPSC ESE (IES) Civil - Building Materials
20 Qs. 40 Marks 24 Mins

Detailed Solution

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Calculation:

Combining 2.5 A and 5 A downward current source together

Combination of  7.5 A downward and upward current will result into SA downward current

Applying current division rule

i1 =5 ×  = 2.5 A

∴ Voltage = 5i1 = 5 × 2.5 = 12.5 V

Note :- It will the opposite to the assumed direction.

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