Skip to content
Early access — you're among the first to try PYQLabs. Share feedback
Concept drill

impedance

GATE Electronics & Communication · Transmission Lines · 1987-2024

11
PYQs
27%
keyed
1
elite explanations
10
years appeared

Study anchor

Source-book anchor pending for this concept.

Practice action

Start latest PYQ

PYQs in this concept

All concepts →
2024 Q15

Consider a lossless transmission line terminated with a short circuit as shown in the figure below. As one moves towards the generator from the load, the normalized impedances $z_{...

medium
2024 Q58

A lossless transmission line with characteristic impedance Z₀ = 50 Ω is terminated with an unknown load. The magnitude of the reflection co-efficient is |Γ| = 0.6. As one moves tow...

medium
2023 Q33

For the two port network shown below, the [Y]-parameters is given as $[Y] = \frac{1}{100} \begin{bmatrix} 2 & -1 \\ -1 & 4/3 \end{bmatrix} S$ The value of load impedance ZL, in Ω,...

hard
2019 Q30

In the circuit shown, if v(t) = 2 sin(1000 t) volts, R = 1 kΩ and C = 1 µF, then the steady-state current i(t), in milliamperes (mA), is

medium
2014 PYQ

A series LCR circuit is operated at a frequency different from its resonant frequency. The operating frequency is such that the current leads the supply voltage. The magnitude of c...

medium
2012 PYQ

The average power delivered to an impedance $(4-j 3) \Omega$ by a current $5 \cos (100 \pi t+100) A$ is

easyanswer keybasic explanation
2002 PYQ

In an impedance Smith chart, a clockwise movement along a constant resistance circle gives rise to

mediumanswer keyelite explanation
2001 PYQ

If each branch of a Delta circuit has impedance $$\sqrt 3 \,Z$$, then each branch of the equivalent Wye circuit has impedance

easyanswer keybasic explanation
1998 PYQ

A voltage source of internal impedance $${\mathrm R}_\mathrm s\;+\;{\mathrm{jX}}_\mathrm s$$ supplies power to a load of impedance $${\mathrm R}_\mathrm L\;+\;{\mathrm{jX}}_\mathrm...

medium
1995 PYQ

A series $$R$$-$$L$$-$$C$$ circuit has a $$Q$$ of $$100$$ and an impedance of $$\left( {100 + j0} \right)\,\Omega $$ at its resonant angular frequency of $${10^7}$$ rad/sec. The va...

easy
1987 PYQ

The impedance function of a parallel $$R$$, $$L$$, $$C$$ circuit has poles located at $$ - 3 \pm j4$$ rad/sec. If the value of $$L = 1H$$, determine the following: (a) the values o...

medium