Two small metallic spheres, each of mass 0.20 g, are suspended as pendulums by light strings from a common point as shown in Figure below. The spheres are given the same electric charge, and it is found that they come to equilibrium when each string is at an angle of 5.0° with the vertical. If each string is 30.0 cm long, what is the magnitude of the charge on each sphere? (Final answer in nanocoulombs. round off to the nearest tenths place)(do not include units) 30.0 cm, 0.20 g 0.20 g

Q: Can superconductors be used in daily life working? Explain in your own words with the help of…

A: Answer: Certain metals and alloys exhibit zero resistivity almost infinite conductivity. When they…

Q: What is a superconductor? Give one example of it.

A: A material that transfer electrons from one atom to another without the presence of resistance is a…

Q: Is it reasonable to expect superconductivity in a "glass," a material with almost no crystalline…

A: Introduction: This question discusses why a material with little or no crystal structure is…

Q: Which region in a transistor is highly doped. Why?

A: SOltuion: Given that which region in the transistor are doped highly and why?

Q: Calculate the conductivity of germanium at 200 deg C

A: Given data, Temperature of the sample of Ge = 200oC

Q: (1) The charge of the tin nucleus is 50e +. Calculate the voltage at a point 10 m away from it, as…

A:

Q: How much of you is not vacuum? Outside of the nucleus, an atom contains mostly empty space. Estimate…

A:

Q: Atoms are made up of even tinier subatomic particles called _____________, _____________, and…

A: An atom is the smallest unit of matter. It is composed of three subatomic particles. They are…

Q: Discuss the scientific and technological impact of a material that becomes a superconductor at room…

A: The materials that show superconductivity at room temperature or nearly room temperature have…

Q: If you know that the atomic weight of a metal is 132.9 and its density is 1.873 gm/cm^3, and that…

A: The fermi energy of a material is given by  Ef=h22me3π2n2/3 where  me=mass of electronn=number…

Q: The base of an electric iron is brightly polished mainly so that ........ ?

A: An electric iron, converts Electrical energy to Heat energy.

Q: According to Moore's Law, if a transistor is 183.8 microns wide this year, how many microns wide…

A: According to Moore's lawNumber of microns=Microns per transistor in current year2Upcoming count of…

Q: Calculate the collector current and determine whether or not the transistor in figure shown below is…

A:

Q: Does the “gas” of freely moving electrons in a metal include all the electrons present? If not,…

A: In a metal electrons free when there is any possibility of electron flow due to external agents or…

Q: Silicon atoms with a concentration of 7x 1010 cm3 are added to gallium arsenide GaAs at T = 400 K.…

A: Given,Concentration of Silicon=7×1010 cm-3

Q: how thermal radiation does occur in nanofluids

A: The thermal radiation is also known as electromagnetic radiation. This is generated by the thermal…

Q: The presence of free electrons makes a material a good insulator. a True b False

A: The Question is Asking whether the Statement The presence of free electrons makes a material a good…

Q: is an example of good conductor of electricity.

A: The materials which fairly allows the electrons or electric current to flow through it, is referred…

Q: A transistor with a height of 0.4 cm and a diameter of 0.6 cm is mounted on a circuit board. The…

A:

Q: Exercise 4.5: two positive charges of 1.5 pC and 3.0 pC which are separated 20 cm jen which point…

A: The following data are given: Charge on the point A, qA=1.5pC=1.5×10-12C Charge on the point B,…

Q: A transistor with a height of 0.4cm and a diameter of 0.6cm is mounted on a circuit board. The…

A: Whenever there is thermal gradient heat will flow from higher temperature to lower temperature. One…

Q: Calculate holes and electrons concentration in compensated silicon p-type sample. If T=300 K,…

A: Solution: The electron concentration for p-type semiconductor at 300K is given by:…

Q: In Metal (Conductor) there is no(………

A: We already know that a Conductor material contain free charges and these free charges can move…

Q: - Plot energy level vs. the occupation probability for electrons in a material at T = 0, a) 160,…

A:

Q: Q 2/ If the electron density of a pure semiconductor at a temperature of 17 C is m3/1016, and when…

A: Since, you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: In the Specific Charge of Copper lons, suppose the current in the circuit is 0.5 A. If the atomic…

A:

Q: The dependency between electron density and fermi energy (E,) for a 2-D free electron gas is, (a) na…

A: Fermi energy is given by   Where kF = Fermi vector, m = mass of electron,  = Reduced planck…

Q: Un átomo de hidrógeno, inicialmente (para t < 0) en su estado base, es colocado al tiempo en un…

A:

Q: What are the conditions of 1D, 2D, 3D Fermi Gas? (T, V, N or any other parameter)

A: Fermi gas is the state of matter which is represented by and ensemble of non-interacting fermions…

Q: What is transistor ? (when it is used, and why ?)

A: A transistor is a semiconductor device having 3 terminals corresponding to npn or pnp type…

Q: What are two ways to move an electron through a solids?

A:

Q: Calculate in unit of Fermi the distance of closest approach for a head-on collision between an alpha…

A:

Q: Do atoms ever actually touch each other?

A: The  atom consists of three particles: protons electrons neutrons In the nucleus of atom there are…

Q: 5. Please select the correct answer: (a) Acceleration of a free electron and its collision with the…

A: Let us  go through each of the definitions given in the right column and find its match with the…

Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.