# What is the symbol of PNP transistor?

## What is the symbol of PNP transistor?

PNP vs NPN Transistor

PNP Transistor | NPN Transistor | |
---|---|---|

Symbol | ||

Collector-emitter voltage | Negative | Positive |

Emitter arrow | Pointed in | Pointed out |

## What are the two main applications of transistor?

Transistors are used in our day to day lives in many forms which we are aware of as amplifiers and switching apparatus As amplifiers, they are being used in various oscillators, modulators, detectors and nearly in any circuit in order to perform a function In a digital circuit, transistors are used as switches

**What is the common types transistor?**

Transistors are basically classified into two types; they are Bipolar Junction Transistors (BJT) and Field Effect Transistors (FET) The BJTs are again classified into NPN and PNP transistors The FET transistors are classified into JFET and MOSFET

**What is PNP and NPN transistor?**

NPN and PNP transistors are bipolar junction transistors, and it is a basic electrical and electronic component which is used to build many electrical and electronic projects In PNP transistors, majority charge carriers are holes, whereas in NPN transistors, electrons are the majority charge carriers

### What is transistor with diagram?

Diagram ‘A’ shows an NPN transistor which is often used as a type of switch A small current or voltage at the base allows a larger voltage to flow through the other two leads (from the collector to the emitter) The circuit shown in diagram B is based on an NPN transistor

### Why do transistors have 3 legs?

The transistor has three legs, these are the base, collector and the emitter The base of the transistor is used to switch current through the collector and emitter When the base is between 0V and 07V it is switched off and above 07V it is switched on allowing the current to flow from the collector to the emitter

**What is the symbol of transistor?**

Transistor Symbols The symbol of NPN and PNP is shown in the figure below The arrow in the symbol indicates the direction of flow of conventional current in the emitter with forward biasing applied to the emitter-base junction The only difference between the NPN and PNP transistor is in the direction of the current

**What is the unit of transistor?**

Standard Electrical Units of Measure

Electrical Parameter | Measuring Unit | Symbol |
---|---|---|

Current | Ampere | I or i |

Resistance | Ohm | R or Ω |

Conductance | Siemen | G or ℧ |

Capacitance | Farad | C |

#### What is unit of diode?

A diode is not a measurable quantity Hence,it does not have a unit Generally,for a diode,we measure characteristics like forward voltage drop,reverse voltage drop and reverse breakdown voltage which are usually measured in Volts therefore, diode is not a term or quantity to be measured

#### What is SI unit current?

The ampere, symbol A, is the SI unit of electric current It is defined by taking the fixed numerical value of the elementary charge e to be 634 ×10−19 when expressed in the unit C, which is equal to A s, where the second is defined in terms of ∆νCs

**What is SI unit of weight?**

The SI unit of weight is the same as that of force: the newton (N) – a derived unit which can also be expressed in SI base units as kg⋅m/s2 (kilograms times metres per second squared)

**What is current formula?**

Current is usually denoted by the symbol I Ohm’s law relates the current flowing through a conductor to the voltage V and resistance R; that is, V = IR An alternative statement of Ohm’s law is I = V/R

## What are the 3 types of speed?

Types of Speed

- Uniform speed
- Variable speed
- Average speed
- Instantaneous speed

## What is SI unit of time and speed?

second

**What is the symbol of speed?**

v

**Why is C the speed of light?**

The speed of light in vacuum is usually denoted by a lowercase c, for “constant” or the Latin celeritas (meaning “swiftness, celerity”) In 1856, Wilhelm Eduard Weber and Rudolf Kohlrausch had used c for a different constant that was later shown to equal √2 times the speed of light in vacuum

### What is C in physics waves?

“As for c, that is the speed of light in vacuum, and if you ask why c, the answer is that it is the initial letter of celeritas, the Latin word meaning speed” Isaac Asimov in “C for Celeritas (1959)” [1]

### Is velocity the same as speed?

Speed is the time rate at which an object is moving along a path, while velocity is the rate and direction of an object’s movement

**Is velocity a vector or scalar?**

Speed is a scalar quantity – it is the rate of change in the distance travelled by an object, while velocity is a vector quantity – it is the speed of an object in a particular direction

**What is the difference between motion and speed?**

motion is a change in position of an object over time Motion is described in terms of displacement, distance, velocity, acceleration, time, and speed The average speed is the distance with respect to time (a scalar quantity) ratio Speed is ignorant of direction

#### How is velocity calculated?

Velocity (v) is a vector quantity that measures displacement (or change in position, Δs) over the change in time (Δt), represented by the equation v = Δs/Δt Speed (or rate, r) is a scalar quantity that measures the distance traveled (d) over the change in time (Δt), represented by the equation r = d/Δt

#### What is Sprint Velocity?

Velocity is a measure of the amount of work a Team can tackle during a single Sprint and is the key metric in Scrum Velocity is calculated at the end of the Sprint by totaling the Points for all fully completed User Stories Estimated time for this course: 5 minutes

**How do we calculate time?**

To solve for time use the formula for time, t = d/s which means time equals distance divided by speed

**How do we calculate velocity in Scrum?**

Simply add up the total of story points completed from each sprint, then divide by the number of sprints So, your average sprint velocity is 96 ÷ 3 = 32 You can now base the amount of work to be done in future sprints on the average of 32 story points