NEET Physics is the scoring paper in the medical entrance examination. Here, you will discover the NEET Physics MCQ Questions for all Concepts as per the latest syllabus. Practice more on a regular basis with these NEET Physics objective questions on air pollution and improve your subject knowledge & problem-solving skills along with time management. NEET Physics Impedance Multiple Choice Questions make you feel confident in answering the question in the exam & increases your scores to high.

## MCQs on Impedance

**1. What is the value of input impedance of a quarter-wave line 50 ohm and the load impedance of 20 ohms?**

(a) 50

(b) 20

(c) 1000

(d) 125

**Answer**

Answer: (d) 125

**2. The value of input impedance for a matched line will be equal to**

(a) Load impedance

(b) Characteristic impedance

(c) Output impedance

(d) Zero

**Answer**

Answer: (b) Characteristic impedance

**3. What is the ratio of characteristic impedance to the input impedance if the ratio of load voltage to the input voltage is given as 5**

(a) ⅕

(b) 5

(c) 10

(d) 25

**Answer**

Answer: (b) 5

**4. The maximum impedance of a transmission line 50 ohm and the standing wave ratio of 2.5 is**

(a) 20

(b) 125

(c) 200

(d) 75

**Answer**

Answer: (c) 125

**5. What is the normally chosen value of the characteristic impedance of a transmission line?**

(a) 50

(b) 75

(c) 50 or 75

(d) 100

**Answer**

Answer: (c) 50 or 75

**6. What is the value of negative sequence impedance?**

(a) 1

(b) Z

(c) Same as positive sequence

(d) infinity

**Answer**

Answer: (c) Same as positive sequence

**7. The standing wave ratio is 4 for a transmission line of 75 ohms. What is the value of the minimum impedance?**

(a) 75

(b) 300

(c) 18.75

(d) 150

**Answer**

Answer: (c) 18.75

**8. A transmission line has a voltage of 24 V and a conduction current of 1.2 A. What will its receiving impedance?**

(a) 25.2

(b) 22.8

(c) 28.8

(d) 20

**Answer**

Answer: (d) 20

**9. What is the value of the characteristic impedance of a transmission line with impedance and admittance of 16 and 9?**

(a) 25

(b) 1.33

(c) 0.75

(d) 7

**Answer**

Answer: (b) 1.33

**10. The propagation constant of a transmission line with impedance and admittance of 9 and 16, respectively is**

(a) 25

(b) 144

(c) 12

(d) 7

**Answer**

Answer: (c) 12