Match the two lists and choose the correct answer from the code given below:

List I	List II
(a) Input resistance with output short-circuited	(i) hf
(b) Reverse open circuit voltage amplification	(ii) hr
(c) Output short-circuited current transfer ratio	(iii) ho
(d) Output conductance with input open-circuited	(iv) hi

The h- parameters are dependent on conductivity parameters of transistors which vary with intrinsic carrier concentration. Since intrinsic carrier concentration varies with temperature the h-parameters vary with temperature.

Every linear circuit having input and output can be analyzed as two-port networks. In these networks, there are four parameters called hybrid or h-parameter. Out of these four parameters, one is measured in ohm, one in mho, and the other two are dimensionless. Since these parameters have mixed dimensions, so they are called hybrid parameters.

hi = input resistance with output shorted (Ω)

hr = Reverse voltage gain with input open or Reverse open circuit voltage amplification(V)

hf = Output short-circuited current transfer ratio or Forward current gain with output shorted

ho = Output conductance with input open-circuited or Output conductance with input open