Q.1 Fig. shows the waveform of the current passing through an inductor of resistance 19 and inductance 2 H. The energy absorbed by the inductor in the first four seconds is

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Q: show the Logic design and the truth table fr the fanction OR = (X9+ WZ )• X + (wX +7y)-y %3D

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Q: *27. a. Given Pmax = 14 mW for each diode at Fig. 172, determine the maximum current rating of each…

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Q: • X= ((A B'). (A+C))' + A’. B. (A +B’ + C')' %3D • Y= (X+ A) (X' +A) (A + C) (A + D) X

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Q: Q5. Consider the linear circuit below. Given that (i) I₁ = 4 A when V₁ = −3 V and (ii) I₁ = -2 A…

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Q: | ΜΑ For the op-amp circuit of Fig. 6.21, find Vo 10 ΚΩ wwwwww + V₁ V₂ ΜΜΜ 99 ΚΩ wwww 1 ΚΩ Hli RL Vo

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Q: 3. For the vector Field E= -(2x² + 2y³)x+ (3xy)ŷ V/m calculate f.E. E-dl around the triangular…

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Q: x[n] = G"u[n– xx] where xx is your university registration no. **

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Antenna Characteristics

The antenna is an important concept in the domain of electronics and communication engineering. An antenna forms an integral part of many commonly used devices such as wireless modems, routers, game controllers, mobile phones, bluetooth devices, and so on. In simple terms, any wireless communication makes use of antennas to serve the purpose. An antenna, also known by the term 'arial', is an electrical device that converts electrical signals into electromagnetic waves or electromagnetic waves into electrical signals. An antenna contains a transmission line usually made up of co-axial cable, it then receives the signals and converts them into electromagnetic waves, which are then transmitted via space into their required destination. A communication system essentially makes use of two antennas, a transmission antenna, which converts electrical signals into electromagnetic waves, and a receiving antenna, which receives the electromagnetic waves and converts them back into electrical signals.