The trigonometric Fourier series for the waveform shown in figure is
Question 2
The gray code word for the binary word 1010011010 .
Question 3
Consider a silica optical fibre whose core refractive index is 1.50 and cladding refractive index is 1.414. Numerical aperture (NA) of the fibre is
Question 4
The phase difference between the adjacent message points in the constellation diagram of a coherent M-ary PSK signal is
Question 5
A load is connected to an active network. At the terminals to which load is connected, the value of Thevenin’s resistance is given by RTh = 20 Ω and the Thevenin’s voltage is VTh = 28 B. The maximum power that can be delivered to the this load is
Question 6
Consider the following statements:
1) Lightly doped drain (LDD) technology can be used to eliminate the latch-up problem in CMOS technology.
2) Silicon-On-Insulator (SOI) technology can be used to eliminate the hot carrier effects in CMOS technology.
Which of the above statements is/are correct?
Question 7
Consider the following statements :
1) Only one path exists between any pair of vertices of a tree.
2) The number of f-cutsets of a tree is same as the rank of the graph.
3) The cutest is a minimal set of edges removal of which from the graph, divides the graph into two parts.
4) The rank of a graph is equal to the number of vertices of the graph.
Which of the above statements are correct?
Question 8
If a satellite is revolving in an orbit whose radius is 4 times the radius of geostationary orbit, then the time taken by the satellite to complete one revolution will be approximately equal to
Question 9
A resistance of approximately 3000 Ω is heated to balance a bridge. It is obtained on a 5dial resistance box having steps of 1000, 100, 10, 1 and 0.1Ω. The Measurement is to be guaranteed value of resistance is to be guaranteed to 0.1 percent , For this accuracy limiting value of resistance is
Question 10
A dc potentiometer is designed to measure up to about 2 volts with a slide wire of 800 mm. A standard cell of emf 1.18 volt. Obtains balance at 600mm. a test cell is seen to obtained balance at 680 mm. the emf of the test cell is.
