Assertion (A): A quarter wave transformer is used to match a resistive load to a transmission line. Reason (R): A quarter wave transformer is a transmission line of quarter wave length.

• Both A and R are correct and R is correct explanation of A
• Both A and R are correct but R is not correct explanation of A
• A is correct but R is wrong
• A is wrong but R is correct

Correct Answer: Both A and R are correct but R is not correct explanation of A

Explanation:

A line of length is called quarter wavelength line. Such a line is used for impedance matching.

If

A quarter wave line can match a source impedance Z_in with load impedance Z_L by selecting a proper value of Z₀ so as to satisfy equation.

Such a line is also called transformer.