by Sunday | Oct 2 | NABTEB QUESTIONS
AN ASTABLE MULTIVIBRATOR: is a type of RC oscillator that generates square or rectangular wave forms. The term astable means not stable. This type of circuit has a no stable state , and it produces its output as a result of continually seeking a stable state. The...
by Sunday | Oct 2 | NABTEB QUESTIONS
i. Lc sine wave oscillators ii. Hartley oscillator iii. Colpitts’ oscillators iv. Crystal oscillator v. RC sine wave oscillators
by Sunday | Oct 2 | NABTEB QUESTIONS
Oscillators are non rotating electronic device that generate device alternating current at desired frequencies. E.g an electronic organ uses oscillated waves to produce musical sounds. Blinking signal light uses oscillated waves. Carrier waves produced by radio...
by Sunday | Oct 2 | NABTEB QUESTIONS
i. Broadcasting: MF medium frequency (0.3-3)MHz ii. Long distance communication: Beamed communication e. g. short wave comm.(3 to 30)MHz UHF (300 to 3000) MHz
by Sunday | Oct 2 | NABTEB QUESTIONS
i. FEDELITY: Is a measure of how well the output of a receiver reproduces the modulation of the signals received at its input. ii. SELECTIVELY: Is a measure of the ability of a receiver to reject unwanted signals iii. SENSITIVITY: The sensitivity of a receiver...
by Sunday | Oct 2 | NABTEB QUESTIONS
i. Capacitor (condenser ) microphone. ii. Carbon microphone. iii. Moving coil microphone. iv. Crystal microphone. v. Velocity or ribbon microphone.
Land Law and the Consequences of Unauthorized Land Transfers in Nigeria
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