-
In the figure given below the value of R is—
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- 2·5Ω
- 5·0Ω
- 7·5Ω
- 10·0Ω
- 2·5Ω
Correct Option: C
The given figure:
The given figure can be represented as: 
The voltage drop across 5Ω resistor is 40V.
It means voltage drop across RΩ resistor
= 100 – 40 = 60V
Now,
| R = | = | = | = 7·5Ω | |||
| I | 8A | 2 |
Hence alternative (C) is the correct choice.
