List of practice Questions

Which process of the Electron-hole pair is responsible for emitting of light?
If \( E_p \) (Fermi energy level) \(>E_f \) (intrinsic Fermi energy level), then the type of semiconductor is
Among the four networks, N1, N2, N3, and N4, given in the following figure, the networks having identical driving point function are
four networks, N1, N2, N3, and N4,
In the following figure, \(C_1\) and \(C_2\) are ideal capacitors. \(C_1\) has been charged to 12V before the ideal switch \(S\) is closed at \(t = 0\). The current \(i(t)\) for all \(t\) is
C1 and C2 are ideal capacitors. C1
If there are 5 branches and 4 nodes in the graph, then the number of mesh equations that can be formed are?
The current waveform \(i(t)\) in a pure resistor of 20 \( \Omega \) is as shown in the figure below, then the power dissipated in the resistor is
waveform i(t) in a pure resistor of 20 Ω
The mesh current method
(I) Works with both planar and non-planar circuits
(II) Uses Kirchhoff’s voltage law
Which of the above is correct?
The 2-port admittance matrix of the circuit shown is given by
2-port admittance matrix
Identify the Y equivalent of a network of the circuit shown in Figure below.
The acidity of the compounds shown below
The acidity of the compounds
follows the order
Entropy is a measure of
The free energy changes at equilibrium is
For a spontaneous process
Degrees of freedom at triple point will be
Example of a sacrificial anode which is used in the protection of underground pipelines is
Which is the most weldable of all metals?
Enthalpy "H" is defined as
The formation of corrosion retarding films on metal surfaces is known as
Lead-free solders are made with
The main cause to exist congruent melting alloys in a given isomorphous system is
Which of the following is an oxide ore of copper?
In Parkes process, desilvering of molten lead is affected by the addition of
Which of the following employs a bottom blowing operation?
The use of bacterial leaching is
Glass ceramics possess ____ .