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In a silicon junction diode, the region of the planar junction between n-type and p-type semiconductors can be approximately represented as two adjoining slabs of charge, one negative and one positive. Away from the junction, outside these charge layers, the potential is constant, with a value of Vn in the n-type material and Vp in the p-type material. Given that the difference between Vp and Vn is 0.3 V, and that the thickness of each of the two slabs of charge is 0.01 cm, find the charge density in each of the two slabs, and make a graph of the potential V as a function of position through the junction.
What is the strength of the electric field at the midplane?
What is the gravitational force of the moon on the earth and What is the gravitational force of the sun on the earth
The current in a 100 watt lightbulb is 0.770A . The filament inside the bulb is 0.300mm in diameter. What is the electron current in the filament
A small conducting spherical shell withinner radius a and outer radius b is concentric with a larger conducting spherical shell with inner radius c and outer radiusd, calculate the electric field (magnitude and direction) in termsof..
In an experiment performed in a space station, a force of 38 N causes an object to have an acceleration equal to 5 m/s2. What is the object's mass
question 1 silver has a resistance of 0.00198 ohms. what voltage would produce a current of 100 a?question 2 find the
monochromatic light(wavelength= 500 nm) passes through two splits and onto a screen 2.5 m away. what is the new distance between bight fringes
A 340kg wooden raft floats on a lake. When a 65kg man stands on the raft, it sinks 3.0cm deeper into the water. When he steps off, What is the total energy of vibration
The water is near freezing in temperature. Typically a human can only swim in such water for about 5 minutes before hypothermia sets in. Calculate the time the explorer spends in the water if the river is 87.3 feet wide
Suppose you are given a problem involving an electron in a wire and you solve the time independent Schr¨odinger equation (TISE) to ?nd ?(x) for a particular energy level E. Write down the expression for ?(x, t) in terms of ?(x) and time t.
Two blocks move along a linear path on a nearly frictionless air track. One block, of mass 0.104 kg, initially moves to the right at a speed of 5.20 m/s, Find the final velocities of the blocks
An ice skater spinning with outstreched arms has an angular sped of 4.0 rad/s. She tucks her arms in, decreasing her moment of inertia by 7.5%. Where does the extra kinectic energy come from
A child of mass 50.0 kg stands 2.00 m from the center of a horizontal circular disc of radius 4.00 m and mass 200 kg. The disc is mounted on a frictionless, vertical axis. Calculate the angular momentum of the disc
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