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 : The component used for tuning a radio is basically a variable (1) Resistor (2) Condenser (3) Inductor (4) Transformer
Last Answer : Condenser
Description : Device used to store energy in electrical circuits is A. resistor B. inductor C. capacitor D. diode
Last Answer : capacitor
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 : 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 : 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 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 : insulator which is placed between 2 plates of capacitor isA. electric B. dielectric C. inductor D. resistor
Last Answer : dielectric
Description : In the illustration, the component VR2 on the A1 AMPLIFIER MODULE is _________. EL-0060 A. a zener diode to regulate the +9 volt power supply from common B. a variable resistor diode to control the output to terminal ... 2 at 9.1 volts DC D. a tunnel diode with a breakdown voltage of 6.6 Volts DC
Last Answer : Answer: C
Description : In the illustration, the component VR1 on the A1 AMPLIFIER MODULE is _________. EL-0060 A. a zener diode to regulate the +9 volt power supply from common B. a variable resistor diode to control the output to ... terminal 9 at 6.6 volts DC D. a tunnel diode with a breakdown voltage of 6.6 Volts DC
Last Answer : Answer: A
Description : In the illustration, the component VR1 on the A1A1 PCB is _________. EL-0060 A. a zener diode to regulate the +9 volt power supply B. a variable resistor diode to control the output to terminal 9 that controls ... terminal 9 at 6.6 volts DC D. a tunnel diode with a breakdown voltage of 6.6 Volts DC
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 : Due to its construction, the component in figure 'A' shown in the illustration has which of the listed advantages compared to bipolar devices? EL-0078 A. Operates with higher voltages and ... as a controllable rectifier. D. Has very high input resistance and uses practically no gate current.
Last Answer : Answer: D
Description : Ratio of voltages is inverse ratio of the A. transformer B. resistor C. iron core D. current
Last Answer : current
Description : In transformer, alternating current is induced inA. primary coil B. secondary coil C. iron core D. resistor
Last Answer : primary coil
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 : 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 : 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
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
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 : 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 : 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 : Before X-ray examination (coloured Xray) of the stomach, patients are given suitable salt of barium because. (1) barium is a good absorber of X-rays and helps stomach to appear clearly (2) barium ... clearly (3) barium allows X-rays to pass through the stomach (4) barium salts are easily available
Last Answer : (1) barium is a good absorber of X-rays and helps stomach to appear clearly
Description : A transformer has a turns ratio of two to one. If a 100 ohm resistor is connected on the high side, its resistance as measured on the low side would be: w) 25 ohms x) 50 ohms y) 100 ohms z) 400 ohms
Last Answer : ANSWER: W -- 25 OHMS
Description : In transformer, the core is made up of soft iron in order to pass the maximum A. flux B. current C. magnetic flux D. voltage
Last Answer : magnetic flux
Description : A 1000Ohm, 1 Watt resistor can safely pass a current of
Last Answer : A 1000 Ohm, 1 Watt resistor can safely pass a current of 30 mA
Description : A Hay bridge measures inductance by comparing an inductor to what component?
Last Answer : A capacitor.
Description : Which one among the following components can not be developed within an "integrated circuit"? (1) Diode (2) Triode (3) Transformer (4) Transistor
Last Answer : (3) Transformer Explanation: Some components like transformers and inductors cannot be integrated into an IC except for very specialized high frequency applications. They have to be ... circuit boards as separate components and cannot be integrated into semiconductor based integrated circuits.
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.
Description : Which one among the following components can not be developed within an “integrated circuit”? (1) Diode (2) Triode (3) Transformer (4) Transistor
Last Answer : Transformer
Last Answer : Transistor
Description : As shown in the illustration, the direction of electron flow through the component is _______. EL-0079 A. from terminal 'B' to terminal 'A' B. from terminal 'A' to terminal 'B' C. determined by the polarity of the applied voltage D. opposite from that in a resistor
Last Answer : Answer: B
Description : Current through each resistor when they are connected in series is A. different B. same C. can be both A and B D. decreasing
Last Answer : same
Description : If current of 20 mA is passing through op-amp and voltage drop across series resistor is 10 V then value of resistance is A. 500Ω B. 400Ω C. 300Ω D. 200Ω
Last Answer : 500Ω
Description : A current of 5 amps passes through a 10 ohm resistor. What power is dissipated by this resistor under these conditions?
Last Answer : ANSWER: 250 WATTS
Description : A current of 6 amperes flows through a 2 ohm resistor for 30 seconds. How many coulombs of charge have passed through the resistor?
Last Answer : ANSWER: 180 COULOMBS
Description : A 10 ohm and a 20 ohm resistor are connected in parallel to a current source. What fraction of the current flows through the 20 ohm resistor? w) 1/2 x) 1/3 y) 2/3 z) 3/4
Last Answer : ANSWER: X -- 1/3
Description : A current of 5 amps passes through a 10 ohm resistor. How many joules of energy will be generated by this resistor in 2 seconds?
Last Answer : ANSWER: 500 JOULES
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 : The symbol shown as figure 'A' represents a/an ____________. EL-0059 A. transformer B. coil C. shunt field D. inductor
Description : Which of the listed devices may be used as a digital device? A. variable resistor B. diode C. strain gauge D. thermistor
Description : A semiconductor that decreases in resistance with an increase in temperature is known as a _____________. A. resistor B. thermistor C. diode D. thermopile
Description : How many type of resistor are there in diode?
Last Answer : Ans-They are two types one is forward resistance 1.Forward resistance 2.Reverse resistance 1.Forward resistance-This is the resistance offered in forward bias condition of the diode. It is calculated by ... in the reverse bias condition of the diode. It is also calculated by the same method.
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 : With a 12 V supply, a silicon diode, and a 370 - ohm resistor in series, what voltage will be dropped across the diode? a) 0.3V b) 0.7V c) 0.9V d) 1.4V
Last Answer : 0.7V