Description : If the inductor and capacitor values are increased, what happens to the resonant frequency?
Last Answer : Decreases.
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 : 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 : 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 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 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 : How would a compass react when placed close to a conductor carrying alternating current at a low frequency?
Last Answer : The compass needle would swing back and forth as the current changed from positive to negative.
Description : How would the compass react if the alternating current through the conductor was a high frequency?
Last Answer : The compass needle would vibrate rapidly around the zero current point ac meter (magnetic north).
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 : In a computer is capable to store single binary bit. A) Capacitor B) Flip flop C) Register D) Inductor
Last Answer : Answer : B
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 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 : 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 : 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 : Device used to store energy in electrical circuits is A. resistor B. inductor C. capacitor D. diode
Last Answer : capacitor
Description : insulator which is placed between 2 plates of capacitor isA. electric B. dielectric C. inductor D. resistor
Last Answer : dielectric
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 : 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 : 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 : 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 : 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 : 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 : When the magnetic field of the inductor is completely collapsed, where is the energy of the tank circuit stored?
Last Answer : . Capacitor.
Description : When you are testing an inductor with a Hay bridge, the characteristics of the inductor are compared with what type of device?
Last Answer : A standard capacitor
Description : Which oscillator uses a tapped inductor for feedback?
Last Answer : Hartley.
Description : State three types of power loss in an inductor.
Last Answer : Copper loss; hysteresis loss; eddy-current loss.
Description : What is the term for the opposition an inductor presents to ac?
Last Answer : Inductive reactance.
Description : What is the phase relationship between current and voltage in an inductor?
Last Answer : Current lags voltage by 90° (ELI).
Description : What effect does an inductor have on a change in current?
Last Answer : An inductor opposes a change in current.
Description : Is the current flow through an inductor directly proportional or inversely proportional to its inductance value?
Last Answer : Directly proportional.
Description : A Hay bridge measures inductance by comparing an inductor to what component?
Last Answer : A capacitor.
Description : To limit the current flow through a DC voltmeter to as low a value as possible, the moving coil circuit is provided with a/an _____________. A. high series resistance B. high parallel resistance C. series inductor D. external shunt
Last Answer : Answer: A
Description : In a series `LCR` circuit the frequency of a `10 V`, `AC` voltage soure is adjusted in such a fashion that the reactance of the inductor meausers `15
Last Answer : In a series `LCR` circuit the frequency of a `10 V`, `AC` voltage soure is adjusted in such a ... the series combination of `L` and `C`will be:
Description : Refers to an ac bridge for measuring the inductance and Q of an inductor in terms of resistance, frequency and a standard capacitance.
Last Answer : hay bridge
Description : What is the reactance of a 3H inductor when the frequency is 120 Hz? A. 2260 ohm B. 2060 ohm C. 360 ohm D. 0
Last Answer : 2260 ohm is the reactance of a 3H inductor when the frequency is 120 Hz.
Description : A sine wave voltage is applied across an inductor. When the frequency of the voltage is decreased, the current decreases.
Last Answer : The question seems to be wrong. Increase in frequency would actually decrease the current through the Inductor. This happens because inductive reactance Xl is directly proportional to frequency. And if frequency increases the value of Xl would ... vice versa. Xl= 2*pi*f*L I=E/Z Z=sqrt(R^2+Xl^2)
Description : Is filtering better at a high frequency or at a low frequency?
Last Answer : At a high frequency.
Description : Is better filtering achieved at a high frequency or at a low frequency at the input of the filter?
Last Answer : High
Description : What is the relative length of the time constant for the diode capacitor combination in a damper (long or short)?
Last Answer : Short time constant.
Description : When the capacitor is completely discharged, where is the energy of the tank circuit stored?
Last Answer : Inductor magnetic field
Description : What is the term used to refer to the losses which can be traced to the dielectric of a capacitor?
Last Answer : Power losses.
Description : What is the purpose of the synchro capacitor?
Last Answer : To improve overall synchro system accuracy by reducing stator currents.
Description : What are the two main disadvantages of an LC capacitor filter?
Last Answer : Cost and size of the inductor.