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A line with lumped parameters of series resistance 10 Ω shunt resistance is composed of 200 Ω. 10 T sections matched to a generator with an emf of 3 volts and terminated by its characteristic impedance. The current at the sending end of the line is—
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- 24.4 µA
- 0.066 A
- 0.033 A
- 0.0033 A
Correct Option: B
A line having the T or π sections in transmission line have the same characteristic impedance after many sections addition and characteristic impedance may be found by image impedance
Z0 = √Z1.Z2
| = | √ | Z1Z2 + | |
| 4 |
here
| Z0 = | √ | 10 × 200 + | = 45 Ω | |
| 4 |
Now we have simplified diagram
So we give as current through input terminal as
| = | = | = 0.066A | |||
| Z0 | 45 | 45 |
