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Capacitors are occasionally referred to as condensers. 11. indicate the false statement Radio communication superimposes this information bearing signal onto a carrier signal. Since most of this range is beyond the vibration rate that most mechanical systems can respond to, RF usually refers to oscillations in electrical circuits or electromagnetic radiation. Modulation is utilized to send an information bearing signal over long distances. The base station then sends the call through the telephone network until it reaches the person you are calling. The condition of unity loop gain -Aβ = 1 is called the Barkhausencriterion. This condition implies that | Aβ|= 1and that the phase of – Aβ is zero. Answer : A capacitor is an electrical/electronic device that can store energyin the electric field between a pair of conductors (called “plates”). 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(a) decrease by a factor of 2 (b) increases by a factor of 2 it’s a A stopband is a band of frequencies, between specified limits, in which a circuit, such as a filter or telephone circuit, does not let signals through, or the attenuation is above the required stopband attenuation level. The basic difference lies in the Multiplexing method used in the aerial communication i.e. Expand ECE ? (c) ground waves (d) sky waves. (c) the ionosphere propagation (d) the bend along the curvature of earth. This term is considered archaic in English, but most other languages use acognate of condenser to refer to a capacitor. 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(b) the VCO, the phase comparator and the low pass filter Preview of the attached file:- 1. The frequency at which the response is -3dB with respect to the maximum response. A communications satellite’s channels are called transponders, because each is a separate transceiver or repeater. There are three types of base station and each has a particular purpose: The Macrocell is the largest type and provides the main coverage for mobile phone networks. The process of storing energy in the capacitor is known as “charging”, and involves electric charges of equal magnitude, but opposite polarity, building up on each plate. 50 Common Interview Questions and Answers Page 8 of 25 9. What is an Integrated Circuit? 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Show Printable Version; 23rd November 2012 , 04:20 PM … For Analog modulation–AM, SSB, FM, PM and SM (c) Y = 0.5 R + 0.5 G + 0.5 B (d) Y=0.59R + 0.3 G +0.11B, 63. one of the following camera tubes is based on photo emissive principle However, your personalized HR interview question and answer dump will help you anticipate real interview-like situations in advance and also prepare actual answers to these questions. (c) the VCO output (d) none of these. A capacitor is an electrical/electronic device that can store energyin the electric field between a pair of conductors (called “plates”). Electronics Engineering MCQ Questions Answers (ECE) Subject Wise. Question8. Most Asked Technical Basic CIVIL | Mechanical | CSE | EEE | ECE | IT | Chemical | Medical MBBS Jobs Online Quiz Tests for Freshers Experienced. from Mobile Tower to your mobile and vice versa. In electronics, a transistor is a semiconductor device commonly used to amplify or switch electronic signals. 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