Physics MCQ on Impedance for NEET, JEE, Medical and Engineering Exam 2021
MCQ on Impedance: Previous trends reveal that NEET/JEE aspirants find Physics as the most challenging section amongst the other sections. But most of them fail to decipher the reason behind this. This particularly can be as the candidates taking up this examination are predominantly medical aspirants with their subject of interest being Biology. Also, sections like Physics are more on theories, laws, numerical as opposed to Biology which is more of fact-based, life sciences and comprising of substantial explanations.
In this post we are providing you MCQ on Impedance, which will be beneficial for you in upcoming NEET, AIIMS, JEE, WBJEE, Medical and Engineering Exams.
MCQ on Impedance
Q1. 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
(b) 125
Q2. 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
(d) 20
Q3. What is the value of negative sequence impedance?
a) 1
b) Z
c) same as positive sequence
d) infinity
(c) same as positive sequence
Q4. 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
(d) 125
Q5. 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
(c) 18.75
Q6. 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) .75
d) 7
(b) 1.33
Q7. 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
(b) 5
Q8. 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
(c) 12
Q9. The value of input impedance for a matched line will be equal to _______.
a) Load impedance
b) Characteristic impedance
c) Output impedance
d) Zero
(b) Characteristic impedance
Q10. What is the normally chosen value of the characteristic impedance of a transmission line?
a) 50
b) 75
c) 50 or 75
d) 100
(c) 50 or 75
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By Team Learning Mantras