capacitor
Description : The device which transfer the signal from low resistance region to high resistance region is – (1) diode (2) transistor (3) capacitor (4) inductor
Last Answer : (2) transistor Explanation: A transistor transfers a signal from a low resistance to high resistance. It has two PN-junctions: one junction is forward biased and other junction is reverse biased ... is introduced in the low resistance, circuit and output is taken from the high resistance circuit.
Description : The device which transfer the signal from low resistance region to high resistance region is (1) diode (2) transistor (3) capacitor (4) inductor
Last Answer : transistor
Description : Increasing the electrical length of an antenna means A. add an inductor in parallel B. add a capacitor in series C. add an inductor series D. add a resistor is series
Last Answer : C. add an inductor series
Description : The 'Choke' used with a tube light is basically – (1) an inductor (2) a capacitor (3) a transformer (4) a resistor
Last Answer : (1) an inductor Explanation: In electronics, a choke is an inductor used to block higher-frequency alternating current (AC) in an electrical circuit, while passing lower-frequency or direct ... created by suddenly interrupting the current in choke, which is connected in series with the tubelight.
Description : insulator which is placed between 2 plates of capacitor isA. electric B. dielectric C. inductor D. resistor
Last Answer : dielectric
Description : The ‘Choke’ used with a tube light is basically (1) an inductor (2) a capacitor (3) a transformer (4) a resistor
Last Answer : an inductor
Description : A component that allows only unidirectional current to pass through it is A. resistor B. inductor C. transformer D. diode
Last Answer : diode
Description : Electrical circuits are protected against overheating by means of a/an ______________. A. circuit breaker B. amplifier C. diode D. capacitor
Last Answer : Answer: A
Description : The most inefficient method of voltage reduction, from the standpoint of power loss, even when placed in series with the load, is the use of a/an ____________. A. capacitor B. inductor C. resistor D. transistor
Last Answer : Answer: C
Description : The most inefficient method of voltage reduction from the stand point of power loss, is a/an _____________. A. capacitor in series with the load B. inductor in series with the load C. capacitor and inductor in series with the load D. resistor in series with the load
Last Answer : Answer: D
Description : To electrically decrease the length of an antenna. A. add an inductor in series B. add an inductor in parallel C. add a resistor in series D. add a capacitor in series
Last Answer : D. add a capacitor in series
Description : How is it possible to lower the resonant frequency of Hertz dipole antenna? A. By reducing the frequency at the transmitter B. By connecting a capacitor in series with the antenna C. By the connecting a resistor in series with the antenna D. By connecting an inductor in series with the antenna
Last Answer : D. By connecting an inductor in series with the antenna
Description : Draw the symbol of i) Iron core inductor ii) variable capacitor iii) resistor iv) Ferrite core inductor
Last Answer : Iron core inductor: Ferrite core inductor:
Description : State the applications and specification of (i) Resistor (ii) Capacitor (iii)Inductor
Last Answer : Application of resistor: 1.Resistors are used in high frequency instrument. 2.Resistor is used in power control circuit. 3.It is used in DC power supplies. 4.Resistors are used ... DC Current 3.Electromagnetic Interference (EMI) 4.Magnetic Saturation Flux Density 5.Curie Temperature
Description : The electric charge is stored in a device called: (1) Inductor (2) Capacitor (3) Resister (4) Transformer
Last Answer : (2) Capacitor Explanation: A capacitor is a passive twoterminal electronic component that stores electrical energy in an electric field. The effect of a capacitor is known as capacitance.
Description : One of the following is a possible cause for a slow drift of frequency in a self-exited transmitter oscillator circuits resulting to a poor frequency stability. A. Loose shielding B. ... capacitor in the oscillator C. Poor soldered connections D. Faulty capacitor, resistor, tubes or resistors
Last Answer : B. Heating of capacitor in the oscillator
Description : The following is an amplifying device : (1) a transformer (2) a transistor (3) a diode (4) a resistor
Last Answer : (2) a transistor Explanation: A transistor is a semiconductor device used to amplify or switch electronic signals and electrical power.
Description : A combination of N-type and P-type material is called a) Diode b) Transistor c) Resistor d) Capacitor
Last Answer : a) Diode
Description : Electric circuits are protected against overloads and short circuits by means of a/an ______________. A. circuit breaker B. amplifier C. diode D. capacitor
Description : Which one among the following components is used as an amplifying device? (1) Transformer (2) Diode (3) Capacitor (4) Transistor
Last Answer : (4) Transistor Explanation: An amplifier is an electronic device that increases the voltage, current, or power of a signal. Generally transistors are active devices that can be used with discrete components to amplify voltage, power or both depending upon the configuration.
Last Answer : Transistor
Description : Capacitors and inductors are commonly used in circuits. Capacitors store electrical energy in the electric field between their plates. How do inductors store energy?
Last Answer : ANSWER: IN A MAGNETIC FIELD SURROUNDING THE INDUCTOR
Description : In a computer is capable to store single binary bit. A) Capacitor B) Flip flop C) Register D) Inductor
Last Answer : Answer : B
Description : In a Computer_________ is capable to store single binary bit. 1) Capacitor 2) Flip Flop 3) Register 4) Inductor
Last Answer : 2) Flip Flop
Description : In a Computer_________ is capable to store single binary bit. 1 Capacitor 2 Flip Flop 3 Register 4 Inductor
Last Answer : 2 Flip Flop
Description : The component used for tuning a radio is basically a variable – (1) Resistor (2) Condenser (3) Inductor (4) Transformer
Last Answer : (2) Condenser Explanation: A tuning capacitor or tuning condenser is a variable capacitor used in an electronic circuit of a radio. It usually connects in parallel to a loop antenna and its capacitance may be intentionally and repeatedly changed mechanically or electronically.
Description : A series circuit consists of a two ohm RESISTOR and a one ohm INDUCTOR. The relationship between current and voltage is: w) current will lag by 30 degrees. x) current will lag by 26 degrees. y) current will lead by 26 degrees. z) current will lead by 30 degrees.
Last Answer : ANSWER: X -- CURRENT WILL LAG BY 26 DEGREES.
Description : The component used for tuning a radio is basically a variable (1) Resistor (2) Condenser (3) Inductor (4) Transformer
Last Answer : Condenser
Description : When working on electrical circuits containing large capacitors, in addition to deenergizing the circuit, which of the listed precautions should also be taken? A. Keep all radio equipment ... capacitor insulation resistance. C. Ground the capacitor terminals. D. Check capacitor circuit polarity.
Description : Which of the listed devices may be used as a digital device? A. variable resistor B. diode C. strain gauge D. thermistor
Last Answer : Answer: B
Description : What is the term for the number of times per second that tank circuit energy is either stored in the inductor or capacitor?
Last Answer : Natural frequency or resonant frequency (f r).
Description : A triac thyristor functions as a control device and is basically ________________. A. two NPN transistors in parallel with a common base lead B. a diode in series with a temperature sensitive capacitor C. two ... -back SCR's with a common gate lead D. a triode tube with an extra heavy grid element
Description : A NOT gate can be implemented by: (1) a single diode (2) two diodes (3) a single resistor (4) a single transistor
Last Answer : (4) a single transistor Explanation: In digital logic, an inverter or NOT gate is a logic gate which implements logical negation. An inverter circuit outputs a voltage representing the opposite ... be constructed using a single NMOS transistor or a single PMOS transistor coupled with a resistor.
Last Answer : a single transistor
Description : What is the phase angle of an ohm inductor in series with an ohm resistor connected to a 5 KHz source?
Last Answer : You need to provide values of resistor and inductor etc to find the phase angle.
Description : A capacitor of capacity `2muF` is changed to a potential different of `12V` . It is then connected across an inductor of inductance `0.6mH` What is th
Last Answer : A capacitor of capacity `2muF` is changed to a potential different of `12V` . It is then ... potential difference across the capacitor is `6.0V` ?
Description : An L-C circuit contains a 0.60 H inductor and a `25muF` capacitor is `3.0xx10^(-5)C?`
Last Answer : An L-C circuit contains a 0.60 H inductor and a `25muF` capacitor is `3.0xx10^(-5)C?`
Description : Increasing the resonant frequency of an end-fed Marconi antenna can be done by A. adding a capacitor in series and reducing the physical length B. adding an inductor in series C. adding an inductor in series D. All of these
Last Answer : A. adding a capacitor in series and reducing the physical length
Description : When a capacitor is connected in series with a Marconi antenna? A. Antenna open circuit stops transmission B. An inductor of equal value must be added C. No change occurs to antenna D. Antenna resonant frequency increases
Last Answer : D. Antenna resonant frequency increases
Description : How does a capacitor and an inductor react to (a) low frequency and (b) high frequency?
Last Answer : At low-frequency, a capacitor acts as an open and an inductor acts as a short. At high-frequency, a capacitor acts as a short and an inductor acts as an open.
Description : If the inductor and capacitor values are increased, what happens to the resonant frequency?
Last Answer : Decreases.
Description : In an a.c. circuit that contains both an inductor and a capacitor, what term is used for the difference between the individual reactances?
Last Answer : Resultant reactance.
Description : P-n junction when reversed biased acts as a (a) Capacitor (b) inductor (c) on switch (d) off switch
Last Answer : d) off switch
Description : State the advantages and disadvantages of series inductor and shunt capacitor filter.
Last Answer : Advantages of series inductor filter 1. It has low ripple factor at heavy load currents (i.e. low load resistance) 2. It has no surge current through the diode. 3. It reduces the ripple in the DC ... . 3. It has low output voltages for heavy loads. 4. Ripple factor is dependent on the load.
Description : An inductor of Q factor 10 is connected in series with a capacitor having a Q factor of 100. The overall Q factor of the circuit is : (A) 100/11 (B) 11/100 (C) 110 (D) 1000
Last Answer : An inductor of Q factor 10 is connected in series with a capacitor having a Q factor of 100. The overall Q factor of the circuit is : 100/11
Description : Which of the following devices converts electrical energy into mechanical energy? (a) Dynamo (b) Transformer (c) Electric motor (d) Inductor
Last Answer : Ans:(c)
Description : A capacitor (condenser) is used in an electrical circuit to (a) step down voltage (b) step up voltage (c) store electric charge (d) produce electric charge
Description : ___ sensors include thermocouples, thermistors, resistor temperature detectors (RTDs) and integratd circuits (ICs). A. Smoke Sensor B. Temperature Sensor C. IR Sensor D. Proximity Sensor
Last Answer : B. Temperature Sensor
Description :
Last Answer : By using current rule
Description : What is represented by the electric symbol figure 'D' in the illustration? EL-0005 A. Fuse B. Plug-in contact resistor C. Variable capacitor D. Electrolytic capacitor