GATE EC 2010 Question Paper (14-Feb-2010) (Shift 1)

A plane wave having the electric field component ${\vec{E}}_r=24cos(3\times 10^{8}t-\beta y){\hat{a}}_z$ V/m and traveling in free space is incident normally on a lossless medium with μ = μ₀ and ε = 9ε₀, which occupies the region y ≥ 0, The reflected magnetic field component is given by

In the circuit shown, all the transmission line sections are lossless. The Voltage Standing Wave Ratio (VSWR) on the 60 Ω line is

Consider the common emitter amplifier shown below with the following circuit parameters:

β = 100, gm = 0.3861 A/V, r0 = ∞, rx = 259 Ω, Rs = 1 kΩ, RB = 93 kΩ, RC = 250 Ω, RL = 1 kΩ, C1 = ∞ and C2 = 4.7 μF

The signal flow graph of a system is shown below

The signal flow graph of a system is shown below