Why do electrons in insulators not contribute to its conductivity?

Q: 17.2 (a) Two protons in a molecule are 3.90  10-10 m apart. Find the electric force exerted by one…

A: Given information: Here, qp and mp are the charge and mass of the proton (standard values) and r is…

Q: Explain two ways that insulators exert their effects.

A: Insulators

Q: what is a reasonable value for the charge of a molecule after several electrons are stripped from…

A:

Q: Ohmic and Non-ohmic Materials No. of dry cells Voltage (V) Current (I) Voltage/Current (V/I) 1.5 9х…

A: Given:-  two data table is given for the value of V and I.  Find:-  1. Calculate the 4th column of…

Q: Why does the ability of a metal to conduct electricity decrease with increasing temperature?

A: SOlution: how does the ability of a metal to conduct electricity affect with increasing temperature.

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

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

Q: The density of silver is 10.5 m 103 kg/ m3. The atomic weight of silver is 107.9. Assuming that each…

A: The density of electrons or electron concentration per m3 is given by the relation n = number of…

Q: Materials in which electric charges (electrons) can move very easily ar O a. non ohmic materials O…

A: If the resistance is law or greater number of free electrons are there, then electrons can move…

Q: True/False. The presence of electrons in a substance makes it a conductor of electricity. O True O…

A: Electricity is the process of flowing of electrons

Q: Why does the conductivity of metals decrease with increase in temperature?

A: Decrease in conductivity of metal with the increase in temperature: In metals, there are free…

Q: What are the similarities and differences between dry cells, alkaline batteries and nicad batteries?

A: similarities between dry cells, alkaline batteries and nicad batteries alkaline batteries  are type…

Q: 9 ohm 6ohm 1 = 2 5v 8 ɔhm

A: Given--- all value given in circuit. We have to find--- current ?

Q: Using KCL and KVL, solve for Vo (*hint: redraw the circuit) 10 V 5Ω Μ Μ Μ 2Ω ww 5 Ω 1Ω 3Ω

A:

Q: Why the conductivity of a pure semiconductor increases with temperature?

A:

Q: "In a good insulator, charges are usually" O free to move around free to move around after an…

A: Given:) insulator material  There are three types of materials conductor,insulator and semiconductor…

Q: Which one of the following junctions satisfy Ig+lD = lA+lc? Case 1 Case 2 Case 5 Case 3 Case 4 O…

A: Case 4

Q: Compute the charge of a cation: Ba+2 A 1.300 x 10 19 C 2.214 x 10-19 C C 3.204 x 10 -19 C D 4.5 x…

A: Given data:  A cation : Ba+2 Required: Charge (q)

Q: Why are the conductors of electric heating devices, such as bread-toastersand electric irons, made…

A: In most of the electric heating devices like bread toasters, and electric irons, alloy is used as…

Q: 4 Conductivity of Select Materials Conductivity Material (1/(2 m)) Aluminum 3.77 x 107 Copper 5.95 x…

A: If conductivity of  material will be large then it's resistance will be low and therefore energy…

Q: ncreasing the temperature of this voltaic cell would increase the voltage:

A: b.) a concentration cell.

Q: In which of the following is charge most easily transferred? nonconductors. semiconductors.…

A: Conductors allow for charge transfer through the free movement of electrons.

Q: How does the electrode potential differ with respect to the change in ligand?

A: Given : How does the electrode potential differ with respect to the change in ligand?

Q: Can a diamond conduct electricity?

A:

Q: Materials such as aluminium and silver are .. O A) good electrical insulators O B) superconductors…

A: Materials such as Aluminium and silver are good conductors of heat and electricity because they have…

Q: poorest insulator materials are?

A: Insulator: The materials which are poor electrical conductors are called insulators.

Q: Insulators also contain electrons, but they are not conductors, Why?

A: Insulators consist of atoms having tightly bound electrons. Whereas, conductors have free electrons.

Q: Ohm is the unit of resistance and it is a unit. O Derivative O basic O complex

A: Basic units are the the fundamental units. for example fundamental unit of length is meters. Derived…

Q: The electric conductivity of a metal will decrease if its temperature increase because A) the speed…

A: Conductivity is caused by the flow of free electrons in metals. The vibration of metal ions…

Q: In which of the following materials electrons cannot move from one atom to another? O a. wood O b.…

A: Insulators are materials in which electrons are tightly bounded and cannot go from one atom to…

Q: is an example of good conductor of electricity. O a. silicon O b. rubber O c. germanium O d. silver

A:

Q: Why the electrons in fermi level not absorb energy??

A: Fermi level is the term used to describe the top of the collection of electron energy levels at…

Q: Although pure water is a poor conductor of electricity, we are cautioned not to operate electrical…

A: Yes pure water or distilled water is a poor conductor of electricity because they don't have any…

Q: If Oxygen gains 2 electrons what charge will it have?

A: Introduction: The amount of the charge on the element is equal to the charge multiple of electrons…

Q: Describe how an insulator can acquire a change?

A: Insulator materials are type of materials which have no charge.  But there are certain conditions in…

Q: The molar conductivity of Na1 ions in aqueous solution at 25°C has been determined to be =.01 × 10-2…

A: Given data The temperature is T=25oC The conductivity k=0.01×10-2 Vcm-1mol-1L The electric field is…

Q: A material that conducts electricity but not as well as a metal but better than a non metal is

A:

Q: In which of the following materials electrons cannot move from one atom to another? a. silver O b.…

A:

Q: heasured across the ribbon, what is the charge density of the free electrons? What effective number…

A:

Q: Materials in which electrons cannot move from one atom to another are O a. good conductors а. O b.…

A:

Q: How many electrons are needed to yield a total charge of 4.5 µC?

A: Given data:  Total charge (Q) = 4.5 μC = 4.5×10-6 C Required: The number of electrons (n)

Q: Metals have a good conductivity for heat and electricity O False O True

A: As we know, Metals have abundance of free electron that carry current so that is why metals are good…

Q: Soldering becomes easy due to the addition of flux. Why?

A: Step 1A flux is a chemical cleaning agent which have function is metallurgy and metal joining. Some…

Q: is an example of good conductor of electricity. O a. germanium O b. silver O c. rubber O d. silicon

A: Silver has higher electrical conductivity.

Q: Oil rises in lamp wick, Why?

A: The oil in the wick of an oil lamp rises up due to capillary action. This effect is due to surface…

Q: Pure water is an insulator whereas salty water is a conductor. Why?

A: It is a true statement that pure water is an insulator whereas the salty water is a conductor.