Use app×
Join Bloom Tuition
One on One Online Tuition
JEE MAIN 2025 Foundation Course
NEET 2025 Foundation Course
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
308 views
in General by (238k points)
closed by

The coefficient of reflection of voltage for a short-circuited line is:


1. 1.0
2. 0
3. -1.0
4. 2.0

1 Answer

0 votes
by (240k points)
selected by
 
Best answer
Correct Answer - Option 3 : -1.0

Formulas for the Coefficients of reflection and refraction are as follows

\({v_{refraction}} = \frac{{2{Z_L}}}{{{Z_L} + {Z_C}}}\)   

 \({v_{reflection}} = \frac{{{Z_L} - {Z_C}}}{{{Z_L} + {Z_C}}}\)

\({i_{refraction}} = \frac{{2{Z_C}}}{{{Z_L} + {Z_C}}}\)   

 \({i_{reflection}} = \frac{{{Z_C} - {Z_L}}}{{{Z_L} + {Z_C}}} = - {v_{reflection}}\)

Where, ZL = Load impedance, ZC = Characteristic or Surge impedance of the line.

These coefficients values for open circuit, short circuit, and flat lines are given as

 

Open circuit line

(ZL = ∞)

Short circuit line

(ZL = 0)

Flat line

(ZL = ZC)

vrefraction

2

0

1

vreflection

1

-1

0

irefraction

0

2

1

ireflection

-1

1

0

 

so, the coefficient of reflection of voltage for a short-circuited line is: -1

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...