Question

The impedance of coaxial cable, when its inductance is 0.40 $\mu$H and capacitance is 1 $\times {10}^{-11}$ F, can be

• A. 2 X 10² Ω
• B. 100 Ω
• C. 3 X 10³ Ω
• D. 3 X 10^{– 2} Ω

Answer 1

The correct option is A 2 X 10² Ω

Using Z = $\sqrt{\frac{L}{C}}$ we get Z = $\sqrt{\frac{0.40\times {10}^{-6}}{{10}^{-11}}}=2\times {10}^2\Omega$