What are the main types of P&C insurance?

• P-wave Motion. P-wave:the primary body wave; the first seismic wave detected by seismographs; able to move through both liquid and solid rock. ...
• S-wave Motion. ...
• Rayleigh-wave Motion. ...
• Love-wave Motion.

What is p-type mean?

(ˈpiˌtaɪp ) adjective. Electronics. designating or of positive semiconductor material in which there are more holes than electrons and current is carried through it by the movement of the holes.

What is p-type and n-type?

In n-type doping, arsenic or phosphorus is added in small quantities to the silicon. ... In p-type doping, boron or gallium is used as the dopant. These elements each have three electrons in their outer orbitals. When they are mixed into the silicon lattice, they form 'holes' in the valence band of silicon atoms.

What are P waves?

A P wave (primary wave or pressure wave) is one of the two main types of elastic body waves, called seismic waves in seismology. P waves travel faster than other seismic waves and hence are the first signal from an earthquake to arrive at any affected location or at a seismograph.

What are the 3 types of seismic wave?

There are three major kinds of seismic waves: P, S, and surface waves. P and S waves together are sometimes called body waves because they can travel through the body of the earth, and are not trapped near the surface. A P wave is a sound wave traveling through rock.

What does P in a P wave stand for?

Compressional waves are also called P-Waves, (P stands for "primary") because they are always the first to arrive. ... The difference in arrival time between these two types of seismic waves can be used as a rough estimate of the distance to the earthquake focus.

Why do P waves refract?

The waves are refracted as they travel through the Earth due to a change in density of the medium. This causes the waves to travel in curved paths. When the waves cross the boundary between two different layers, there is a sudden change in direction due to refraction.

What are the characteristics of P wave?

P waves, also called compressional or longitudinal waves, give the transmitting medium—whether liquid, solid, or gas—a back-and-forth motion in the direction of the path of propagation, thus stretching or compressing the medium as the wave passes any one point in a manner similar to that of sound waves in air.

What are P waves and S waves in earthquakes?

In P or compressional waves, the vibration of the rock is in the direction of propagation. P waves travel fastest and are the first to arrive from the earthquake. In S or shear waves, rock oscillates perpendicular to the direction of wave propagation.

How are P waves distinguished from S waves?

they differ from each other in speed. P-waves are the fastest waves that travel inside earth and can travel in all mediums. S- waves cannot travel in fluids as they dont have shear force.

What is the difference between S and P waves in an earthquake?

P waves can travel through liquid and solids and gases, while S waves only travel through solids. Scientists use this information to help them determine the structure of Earth. For example, if an earthquake occurs on one side of Earth, seismometers around the globe can measure the resulting S and P waves.

What is the other term for P waves?

A P wave, or compressional wave, is a seismic body wave that shakes the ground back and forth in the same direction and the opposite direction as the direction the wave is moving.

What is the movement type of P wave?

Seismic P waves are also called compressional or longitudinal waves, they compress and expand (oscillate) the ground back and forth in the direction of travel, like sound waves that move back and forth as the waves travel from source to receiver.

What is the P wave in the heart?

The P wave and PR segment is an integral part of an electrocardiogram (ECG). It represents the electrical depolarization of the atria of the heart. It is typically a small positive deflection from the isoelectric baseline that occurs just before the QRS complex.

What is the P wave before QRS?

The presence of P waves immediately before every QRS complex indicates sinus rhythm. If there are no P waves, note whether the QRS complexes are wide or narrow, regular or irregular.

What is p-type semiconductor 12?

When a pure semiconductor is doped with a trivalent impurity (B, Al, In, Ga ) then, the three valence electrons of the impurity bond with three of the four valence electrons of the semiconductor. This makes a vacant electron (hole) in the impurity atom. ... Thus, these semiconductors are called p-type semiconductors.

What are the p-type semiconductors?

What is a p-type Semiconductor? A p-type semiconductor is an intrinsic semiconductor doped with boron (B) or indium (In). ... If a small amount of boron is doped to a single crystal of silicon, valence electrons will be insufficient at one position to bond silicon and boron, resulting in holes* that lack electrons.

What is p-type transistor?

Works in exactly the opposite fashion from the N-type transistor. When gate is supplied with 0 volts, we have closed circuit like a wire between the source and the drain. When the gate is supplied 2.9 volts, P-type transistor acts like an open circuit with broken connection.

What is p-type substance in physics?

A p-type semiconductor is an extrinsic type of semiconductor. When a trivalent impurity (like Boron, Aluminum etc.) is added to an intrinsic or pure semiconductor (silicon or germanium), it is said to be a p-type semiconductor. Trivalent impurities such as boron (B), gallium (Ga), indium (In), aluminum (Al) etc.

What is the example of n-type semiconductor?

Arsenic doped Silicon, Phosphorus doped Silicon, Arsenic doped Germanium, Phosphorus doped Germanium etc. are the examples of n-type semiconductor.