c) Collector bias. The ends of a load line drawn on a family of curves determine. Answer. When a capacitor is used in place of a resistor in an op-amp network, its placement determines: Open or closed-loop gain; Integration or differentiation; Saturation or cutoff; Addition or subtraction Tags. b) Ac signal bypass. Value of the unknown resistor is. (a) Ammeter (b) galvanometer (c) voltmeter (d) potentiometer. Rotor rheostat control method of speed control is used for a) Squirrel-cage induction motors only b) Slip ring induction motors only c) Both (A) and (B) d) None of the above Operational Amplifier Question and Answer. Q1. Answer. a) Dynamic. MCQ for Electricity. These MCQ Questions on Electric Current and Its Effects Class 7 with answers pave for a quick revision of the Chapter thereby helping you to enhance subject knowledge. a) The power curve. 24. Capacitance Multiple Choice Questions and Answers. a. To save energy during braking—————–braking is used? c) Regenerative. A variable resistor consists of a length of resistance wire and an adjustable sliding contact. A variable resistor (rheostat) can be used to control current in a circuit. Which of the following is the SI Unit of Electric Current? Menu. Answer: (c) ohm . A voltmeter is a high resistance instrument and is connected in series circuit B. These instruments are used either as ammeters or voltmeters and are suitable for d.c. work only. c) The operating point. Multiple choice questions are perhaps the easiest to complete - you simply put a cross in a box - however, the questions often have two answers that could, at first glance, be correct. With a PNP circuit, the most positive voltage is probably . ASWDC (App, Software & Website Development Center) Darshan Institute of Engineering & Technology (DIET) 14. Explanation: A signal (image) can interfere with a superheterodyne receiver if fits the following equation. 2. Is thermistor a sensor. C. 5 percent. 31. A rheostat differs from potentiometer in the respect that it (a) has lower wattage rating (b) has higher wattage rating (c) has large number of turns (d) offers large number of tapping . The thermistor is a sensor: True; False; Correct answer: 1. Question 14. About. The capacitance between two plates increases with . Recommended Post MCQ on Electromagnatism – 1 MCQ on Power electronics – 1 MCQ on Transmission and Distribution – 7 Basic electrical components – Resistor, Capacitor and Inductor MCQ on Battery – 2. The term thermistor is a combination of thermal and resistor. D. Larger plate area and shorter distance between plates View Answer. Rheostats are used to increase or decrease the volume of a radio. 20 Questions | By Froydwess | Last updated: Jun 22, ... A resistor is specified as having a value of 68 Ω, but is measured with an ohmmeter as 63 Ω. www.gtu-mcq.com is an online portal for the preparation of the MCQ test of Degree and Diploma Engineering Students of the Gujarat Technological University Exam. 2110 kHz C. 745 kHz D. 910 kHz. (a) Electric potential (b) electric conductance (c) Electric current (d) none of these. Home >> Category >> Electronic Engineering (MCQ) questions & answers >> Linear Applications of Op-amp; 1) Due to presence of a capacitor in feedback path, the output of an integrator varies _____ a. 3. Answer: (b) rheostat. Home. ... resistor (b) rheostat (c) open switch (d) none of these. 6. An electric iron draws a current 4 A when connected to a 220 … d) Higher gain . 1. Ans: c. 25. The SI unit of resistance is (a) ohm m (b) ohm m 1 (c) ohm (d) (ohm)-1. 1655 kHz B. Operational Amplifier Trivia Questions and Answers PDF. 7.9 percent. Electricity Question 15. In a C-E configuration, an emitter resistor is used for. Answer: b. While 4 band resistors are most commonly available we’ll use them in next problems. Answer. 49.03 miliohm; 108.3 milliohm; 20.4 miliohm; 53.1 miliohm; Answer. Free PDF Download of CBSE Physics Multiple Choice Questions for Class 12 with Answers Chapter 7 Alternating Current. A term used to express the amount of electric energy stored in electrostatic field is (a) ... MCQ or Objective. Ohm’s law Quiz MCQs with Resistor Color Coding Technique. 7. MCQ Quiz . Answer Explanation ANSWER: Gradually. A rheostat is a variable resistor or an adjustable resistor.Its resistance can be varied as desired.It is a continuous resistance varying device used to change the magnitude of current in a circuit by changing the length of the resistance wire inserted into the circuit.The main use of a rheostat … 13. Multiple Choice Questions and Answers on Radio Receivers. The input resistance between two points. Which of the following is the SI Unit of Electric Current? A voltmeter is used to find p.d. 23. b) The amplification factor. b) ground. 7.4 percent. List various applications of rheostat. For a carbon–composition resistor colour-coded with yellow. Color coding technique is used to represent the values of resistors in the form of colored bands. A. 4, 5 or 6 bands are designed over the bodies of resistors. The thermistor is a sensor whose resistance varies with temperature and it can be used to sense temperature. (a) ohm (b) ampere (c) volt (d) faraday. What is the rate of flow of electric charges called? B. A. Part 1: List for questions and answers of Power Electronic Controlled Drives . Both speed and torque can be controlled by armature voltage control, armature rheostat control, and chopper control methods. (a) Electric potential (b) electric conductance (c) Electric current (d) none of these. a) Stabilization. Answer. The potential difference across the resistor will be: (a) 30 V (b) 10 V (c) 20 V (d) 25 V. Answer. Resistor Color Code; Voltage Divider; Current Divider; Please do a quick review of the listed topics before answering the following Multiple Choice Questions or Quizzes: Resistance and Resistive Circuits MCQ/Quiz. Shorter plate area and higher applied voltage . Subject: Power Electronic Controlled Drives 1. True. C. The rheostat can only increase the resistance in electric circuit D. The single key is used to switch on/off the electric circuit 13. Answer. a) VBE. Multiple choice questions are asked as questions, often starting with 'What is …' or 'Which of these …'. Have a glance at the MCQ of Chapter 14 Science Class 7 … Combination of two or more cells is..... (A) Battery (B) Current (C) Power (D) I don’t know 51. 1. Students can solve NCERT Class 12 Physics Alternating Current MCQs Pdf with Answers to know their preparation level. If it is tuned to 1200 kHz, the image frequency will be. D. 10 percent . Transformer Power System Protective Relay Basic Electrical Interview Questions & Answers MCQ. An ammeter is used to measure. 100 J of heat is produced each second in a 4Ω resistor. in any electrical circuit which of the statement given below is true : A. A potentiometer is used to measure the voltage between two points of a D.C. circuit, which is found to be 1.2 V. This is also measured by a voltmeter, which is found to be 0.9 V. The resistance of the voltmeter is 60 kΩ. Rheostats are used … A voltage source, a load, and a conductive path for current C. A voltage source, a conductive path for current, and a battery D. A conductive path for current, a battery, and a copper wire. Menu. The symbol for a variable resistor is given in the diagram below. More Topics. These motors are used where the motor speed below the base speed is required as they cannot be operated above the base speed. c) VC. MCQ for Electricity. Q2. Q.1. Categories. A variable resistor used to control current is..... (A) Rheostat (B) Potentiometer (C) Both a and b (D) None 50. d) All of the above . 2. Question 13. d) Saturation and cutoff . C. Larger plate area, longer distance between plates and higher applied voltage . Using the formula W = E^2/R, we can work out that the resistance of the 25W lamp is 484 ohms, and that of the 100W lamp is 121 ohms. Q18. Voltage dependent resistors are usually made from (a) charcoal (b) silicon carbide (c) nichrome (d) graphite . One ampere is defined as the current which will flow in a resistor of 1 Ω, when 1 volt potential difference is applied across its ends. Post navigation. Ans: b. Which instrument is used for measuring electric potential? Suppose a resistor is rated at 3.3 K Ω, plus or minus 5 percent. Image = Signal +/- 2 x I.F. This type of instrument is based on the principle that when a current carrying conductor is placed in a magnetic field, the mechanical force acts on the conductor. Resistance and Resistive Circuits MCQ/Quiz) Multiple Choice Questions / Quiz Resistance and Resistive circuits . The concept of V/f control of inverters driving induction motors … B. (a) ohm (b) ampere (c) volt (d) faraday. (b) (c) (i) Circuit diagram (ii) V = 1.6 V I = 0.6 A Gradually b. Instantaneously c. Intermittently d. All of the above. A variable resistor used to control voltage is..... (A) Rheostat (B) Potentiometer (C) Both a and b (D) None 49. Electrical Engineering MCQ Question Papers: Campus Placement. The coil placed in the magnetic field and carrying the operating current is attached to the moving system. In a superheterodyne receiver, the IF is 455 kHz. Which instrument is used for measuring electric potential? Answer: a. From this we can work out that at 110V, the 25W bulb draws 22mA and the 100W bulb draws 91mA. A load, a resistor, and a conductive path for current B. Explanation: No explanation is available for this question! A rheostat is also known as a. a voltage regulator b. an automatic resistor c. a current controller d. a variable resistor e. an exciter Answer: D Q19. Gibilisco: Trivia Questions On Resistors! 3. Check the below NCERT MCQ Questions for Class 10 Science Chapter 12 Electricity with Answers Pdf free download. For example, assume that the load in Figure 2 has a resistance of 10 Ω and the supply voltage is 100 V. If the rheostat is set to 5 Ω, determine the load power, input power and efficiency. Physics MCQs for Class 12 Chapter Wise with Answers PDF Download was Prepared Based on Latest Exam Pattern. Solving the Electric Current and Its Effects Multiple Choice Questions of Class 7 Science Chapter 14 MCQ can be of extreme help as you will be aware of all the concepts. Rheostat is a type of variable resistor which is used to control the flow of electric current by manually increasing or decreasing its resistance. Shorter play area and shorter distance between them . Violet, orange and silver stripe from left to right, the resistance with tolerance is a) 740 ohms ± 5% b) 4700 ohms ± 10% c) 7400 ohms ± 1% d) 47,000 ohms ± 10% Electricalunits.com. b) Plugging. Electric potential is a: (a) scalar quantity (b) vector quantity (c) neither scalar nor vector (d) sometimes scalar and sometimes vector. A. Figure 2: Circuit Symbol of Variable Resistor. What is the rate of flow of electric charges called? (a) Ammeter (b) galvanometer (c) voltmeter (d) potentiometer. Answer. B. In this section of Digital Logic Design - Digital Electronics - D/A (D to A - Digital to Analog) and A/D (A to D - Analog to Digital) Converters MCQs (Multiple Choice Questions and Answers),We have tried to cover the below lists of topics.All these MCQs will help you prepare for the various Competitive Exams and University Level Exams. Its S.I. Figure 2 Rheostat load control. The value is off by: A. units is ampere, it is connected in series. 14. 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