A combination of N-type and P-type material is called a) Diode b) Transistor c) Resistor d) Capacitor

A combination of N-type and P-type material is called
a) Diode b) Transistor c) Resistor d) Capacitor
by

1 Answer

Answer :

a) Diode
by

Related questions

Photo diode operates in the _______ condition (a) Forward bias (b) null (c) both a & d (d) reverse bias

Description : Photo diode operates in the _______ condition (a) Forward bias (b) null (c) both a & d (d) reverse bias

Last Answer : (d) reverse bias

A series combination of resistance 100 ohm and capacitance 50µf is connected in series to a 230 V, 50HZ supply. Calculate (i) Capacitive reactance (ii) Current (iii) Power factor (iv) Power consumed

Description : A series combination of resistance 100 ohm and capacitance 50µf is connected in series to a 230 V, 50HZ supply. Calculate (i) Capacitive reactance (ii) Current (iii) Power factor (iv) Power consumed 

Last Answer : For RC series circuit

Identify the correct combination of respective Electric arc welding and Electric resistance welding methods :

Description : Identify the correct combination of respective Electric arc welding and Electric resistance welding methods :  (A) Butt welding and Seam welding  (B) Hydrogen shielding and Projection welding  (C) Seam welding and Coated electrode welding  (D) Coated electrode welding and Hydrogen shielding

Last Answer : Identify the correct combination of respective Electric arc welding and Electric resistance welding methods :  (A) Butt welding and Seam welding  (B) Hydrogen shielding and Projection welding  ... Seam welding and Coated electrode welding  (D) Coated electrode welding and Hydrogen shielding

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 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

When troubleshooting a console circuit card suspected of being faulty, first check operating voltages, clean the card and then _________________. A. make sure wired connections and push-on connectors are tight B. test each resistor and capacitor on the card with an ohmmeter C. check the continuity of all printed circuit traces with an ohmmeter D. measure the gain of each transistor or integrated circuit

Description : When troubleshooting a console circuit card suspected of being faulty, first check operating voltages, clean the card and then _________________. A. make sure wired connections and push-on connectors ... circuit traces with an ohmmeter D. measure the gain of each transistor or integrated circuit

Last Answer : Answer: A

The following is an amplifying device : (1) a transformer (2) a transistor (3) a diode (4) a resistor

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.

A NOT gate can be implemented by: (1) a single diode (2) two diodes (3) a single resistor (4) a single transistor

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.

A NOT gate can be implemented by: (1) a single diode (2) two diodes (3) a single resistor (4) a single transistor

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 : a single transistor

In a P-type semiconductor the charge carriers are a) Electrons b) Holes c) Protons d) Neutrons

Description : In a P-type semiconductor the charge carriers are a) Electrons b) Holes c) Protons d) Neutrons

Last Answer : b) Holes

A semiconductor device made up of a single p-n Junction is called a: w) transistor x) diode y) Fet z) integrated circuit

Description : A semiconductor device made up of a single p-n Junction is called a: w) transistor x) diode y) Fet z) integrated circuit

Last Answer : ANSWER: X -- DIODE

In the N-type semiconductor the charge carries are a) Holes b) Neutrons c) Protons d) Electrons

Description : In the N-type semiconductor the charge carries are a) Holes b) Neutrons c) Protons d) Electrons

Last Answer : d) Electrons

Device used to store energy in electrical circuits is A. resistor B. inductor C. capacitor D. diode

Description : Device used to store energy in electrical circuits is A. resistor B. inductor C. capacitor D. diode

Last Answer : capacitor

Which one among the following components is used as an amplifying device? (1) Transformer (2) Diode (3) Capacitor (4) Transistor

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.

The device which transfer the signal from low resistance region to high resistance region is – (1) diode (2) transistor (3) capacitor (4) inductor

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.

Which of the devices listed is indicated by the electronic symbol lettered as 'A', shown in the illustration? EL-0016 A. Thyristor B. Diode C. Capacitor D. Transistor

Description : Which of the devices listed is indicated by the electronic symbol lettered as 'A', shown in the illustration? EL-0016 A. Thyristor B. Diode C. Capacitor D. Transistor

Last Answer : Answer: B

Which one among the following components is used as an amplifying device? (1) Transformer (2) Diode (3) Capacitor (4) Transistor

Description : Which one among the following components is used as an amplifying device? (1) Transformer (2) Diode (3) Capacitor (4) Transistor

Last Answer : Transistor

The device which transfer the signal from low resistance region to high resistance region is (1) diode (2) transistor (3) capacitor (4) inductor

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

Which is the most important building block of electronic devices? (a) Diode (b) p-n junction (c) transistor (d) rectifier

Description : Which is the most important building block of electronic devices? (a) Diode (b) p-n junction (c) transistor (d) rectifier

Last Answer : b) p-n junction

When stress is increased beyond elastic limit and material is permanently changed this property is a) Permanent stress b) Elasticity c) Yield strength d) Plasticity

Description : When stress is increased beyond elastic limit and material is permanently changed this property is a) Permanent stress b) Elasticity c) Yield strength d) Plasticity

Last Answer : d) Plasticity

Which class of material would you classify Nylon a) Fibres b) Polymer c) Ceramics d) Glass

Description : Which class of material would you classify Nylon a) Fibres b) Polymer c) Ceramics d) Glass

Last Answer : b) Polymer

What is the relative length of the time constant for the diode capacitor combination in a damper (long or short)?

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.

In the illustrated amplifier, the base of the transistor is what type of material? EL-0022 A. N type B. P type C. metal oxide insulator D. alloy junction material

Description : In the illustrated amplifier, the base of the transistor is what type of material? EL-0022 A. N type B. P type C. metal oxide insulator D. alloy junction material

Last Answer : Answer: A

With proper reason suggest type of enclosure for electric drives used in coal mines.

Description : With proper reason suggest type of enclosure for electric drives used in coal mines.

Last Answer : Flame-proof type of enclosure for electric drives is used in coal mines.  Reason: - Coal mines are very hazardous, prone to flame and explosions. Under such conditions, flame proof type ... them (due to arcs, sparks, or flashes) without igniting the surrounding flammable gases or vapors.

Describe with a neat diagram, the process of any one type of electric welding.

Description : Describe with a neat diagram, the process of any one type of electric welding. 

Last Answer : Methods of electric welding :  1. Resistance welding  i Butt welding  ii Spot welding  iii Seam welding  iv Projection welding  2. Arc Welding  i Carbon arc welding  ii ... as copper, iron etc. The electric arc effectively concentrate heat on the surfaces it is desired to join.

In the tunnel diode, the tunneling current is at what level when the forbidden gap of the N-type material is at the same energy level as the empty states of the P-type material?

Description : In the tunnel diode, the tunneling current is at what level when the forbidden gap of the N-type material is at the same energy level as the empty states of the P-type material?

Last Answer : Minimum.

The maximum stress that a body can tolerate is called: a) UTS b) Permanent stress c) Elastic strength d) Plastic stress

Description : The maximum stress that a body can tolerate is called: a) UTS b) Permanent stress c) Elastic strength d) Plastic stress

Last Answer : a) UTS

The ratio of stress to volumetric strain is called a) Shear Modulus b) Young’s Modulus c) Bulk Modulus d) Modulus of elasticity

Description : The ratio of stress to volumetric strain is called a) Shear Modulus b) Young’s Modulus c) Bulk Modulus d) Modulus of elasticity

Last Answer : c) Bulk Modulus

The deformation of a solid when stress is applied is called a) Strain b) Elasticity c) Rigidity d) Pressure

Description : The deformation of a solid when stress is applied is called a) Strain b) Elasticity c) Rigidity d) Pressure

Last Answer : a) Strain

The ability of a body to return to its original shape is called: a) Plasticity b) Elasticity c) Strain d) Stress

Description : The ability of a body to return to its original shape is called: a) Plasticity b) Elasticity c) Strain d) Stress

Last Answer : b) Elasticity

Reciprocal of resistivity is called a. Resistance b. Inductance c. Conductivity d. Flexibility

Description : Reciprocal of resistivity is called a. Resistance b. Inductance c. Conductivity d. Flexibility

Last Answer : c. Conductivity

The ability of materials to become polarized under an applied electric field is called _______

Description : The ability of materials to become polarized under an applied electric field is called _______ A) Ferroelectricity B) Paraelectricity C) Polectricity D) None of these

Last Answer : The ability of materials to become polarized under an applied electric field is called Paraelectricity

Electric pressure is also called?

Description : Electric pressure is also called?

Last Answer : Electric pressure is also called voltage.

An electric motor in which both stator field and rotor rotates with same speed is called?

Description : An electric motor in which both stator field and rotor rotates with same speed is called?

Last Answer : An electric motor in which both stator field and rotor rotates with same speed is called synchronous motor.

Compressor wizards, share your wisdom?

Description : Compressor wizards, share your wisdom?

Last Answer : There is this chap that bought a small compressor for electronics dusting purposes and compared it to a normal blower style duster. The compressor was a complete failure.

How would you handle UPS packages with this setup?

Description : How would you handle UPS packages with this setup?

Last Answer : Pick them up from the depot…

Q-12 which Testing is used in high thickness job in LNT?

Description : Q-12 which Testing is used in high thickness job in LNT?

Last Answer : Ultrasonic Testing.

Q-11 What is the purpose of dust free zone in LNT?

Description : Q-11 What is the purpose of dust free zone in LNT?

Last Answer : Special dust-free enclosures with temperature and humidity control enable the Company to achieve manufacturing excellence in Class 1 nuclear island components. L&T manufactures reactor vessels, steam ... and Heat Exchangers are manufactured within dust-free enclosures at L&T's workshops.

Q-10 In TANDEM SAW process, why AC and DC both currents are used?

Description : Q-10 In TANDEM SAW process, why AC and DC both currents are used?

Last Answer : AC will melt the base metal and make weld pool in the base metal and by DC it will fill the weld metal in the weld pool.

Q-9 how many electrodes are used in the TANDEM SAW? What is the polarity of the both electrode?

Description : Q-9 how many electrodes are used in the TANDEM SAW? What is the polarity of the both electrode?

Last Answer : In TANDEM SAW process there are more than one electrode is used. But for first electrode alternative current and for second electrode direct current shall be used.

Q-8 which types of SAW process are used in Larsen and Toubro?

Description : Q-8 which types of SAW process are used in Larsen and Toubro?

Last Answer : Tandem SAW Narrow groove application As the section thickness of vessel for nuclear and petroleum industry increase, the desire for reduced weld time and material consumption has driven the joint on ... process is carried out. LNT practice that for many of high thickness nuclear pressure vessel.

Q-7 during welding process, why sinusoidal wave form is converted in to the square wave form?

Description : Q-7 during welding process, why sinusoidal wave form is converted in to the square wave form?

Last Answer : In sinusoidal wave, we get maximum energy at one point only. So for the more amount of maximum energy we can get by converting the sinusoidal wave form in to the square wave form, and more penetration and deposition rate is achieved due to maximum energy.

Q-6 which innovative welding technique is used by L & T in T joint welding?

Description : Q-6 which innovative welding technique is used by L & T in T joint welding?

Last Answer : In T joint welding backing is required in other side while welding on one side. Flux goes on another side from the root opening and that has to be removed before welding other side. During the ... of the job is also not required by other sources since one side of welding serve the purpose.

Q-5 what is the phenomena behind the overhead welding?

Description : Q-5 what is the phenomena behind the overhead welding?

Last Answer : In overhead welding during welding flux has more fluidity and comes on the surface when the metal is deposited in the root gape. There are different freezing point metal and the flux. so metal have low ... deposit in the root gape and flux have a high freezing point so its deposit on the metal .

Q -4 what is the purpose of sodium, silicon and potassium in core element?

Description : Q -4 what is the purpose of sodium, silicon and potassium in core element?

Last Answer : • Silicon - deoxidize & form slag • Sodium - stabilize arc & form slag • Potassium - stabilizes the arc & form slag

Q-3 Write the energy distribution for different polarity?

Description : Q-3 Write the energy distribution for different polarity?

Last Answer : DCEP – 67% at electrode and 33% at job. • DCEN – 33 % at electrode and 67% at job. • AC – 50 % at electrode and 50% job.

Q-2 what are the functions of electrode covering in SMAW process?

Description : Q-2 what are the functions of electrode covering in SMAW process?

Last Answer : To facilitate arc ignition and give arc stability. To generate gas for shielding the arc & molten metal from air contamination. To de-oxidise the weld metal and flux impurities into the slag. To ... to support the molten weld metal). To control hydrogen contents in the weld. (basic type)

Q-1 what is the function of copper coating in SAW filler wire?

Description : Q-1 what is the function of copper coating in SAW filler wire?

Last Answer : to assure a good electric contact between wire and contact tip • to assure a smooth feed of the wire through the guide tube, feed rolls and contact tip (decrease contact tube wear) • to provide protection against corrosion

at the terminal of a three-phase 6.6Kv alternator a load R=200 ohm is connected between two-phase and the third phase is opened. Z1=z2=5 ohm Zo=2 find out the fault current .

Description : at the terminal of a three-phase 6.6Kv alternator a load R=200 ohm is connected between two-phase and the third phase is opened. Z1=z2=5 ohm Zo=2 find out the fault current .

Last Answer : 32A

The emission of number of photo electrons depends upon a) The colour of the body b) The frequency of incident light c) The intensity of light d) All of the above

Description : The emission of number of photo electrons depends upon a) The colour of the body b) The frequency of incident light c) The intensity of light d) All of the above

Last Answer : c) The intensity of light

Black body radiations depends upon a) The shape and nature of the body b) The velocity of radiations and colour of the body c) The temperature of the body d) All of the above

Description : Black body radiations depends upon a) The shape and nature of the body b) The velocity of radiations and colour of the body c) The temperature of the body d) All of the above

Last Answer : c) The temperature of the body