Radium decomposes at a rate proportional to the amount present. If half of the original amount disappears after 969yrs, what is the percentage lost in 100 years?

Q: _33. How many electrons can be contained in any one orbit, or shell? a. (IN?) b. (2N2) eared in c.…

A: How many electrons can be contained in any orbit or shell ? A. (1N2) B. (2N2) C. (2N)2 D. (3N2)

Q: What would be the radius of a gold wire 235 meters in length, and has the resistance of 0.32k Ohms?

A: We know that resistance of a material is R=ζlA Area of circle is πr^2

Q: 11) The resistance of a copper at 30°C is 500. If the temperature coefficient of copper at 0°C is…

A: To solve above problem, one should know about resistance calculation of a material. The resistance…

Q: Assume that 6.25 x1015 electrons flow past a given point in a conductor every 10 s. Calculate the…

A: Rate of flow of charge is called current I.e. Current = charge/ time.  Charge of the electron…

Q: Identify the statement from the following why silver allows electric current. O a. It has low…

A: In this answer let us try to understand the reasons which makes the silver to.allow the electric…

Q: Which one of the Folowing is the unit of Energy? a. volts b. Watts c. Calorie d. Kg

A: Energy is given by  E = The Power dissipated by the electric element in given time . E = P× T  P=…

Q: A string insulator having 4 units. 33.33% of voltage of the total voltage is across the bottom most…

A: Given  String insulator having Number of insulator discs is n=4Voltage across the bottom unit is…

Q: 1. The following resistance values of a platinum resistance thermometer were measured at a range of…

A: Sr. No Resistance Temp 1 307 200 2 314 230 3 321 260 4 328 290…

Q: A certain battery with potential difference of 2 Volts can deliver 10 Joules of energy, determine…

A: Voltage is defined as  The work done per unit charge So use the definition V = W/q volts Units of…

Q: Compare the size of Germanium with the other elements of the same group and explain its trend

A: The same elements in group of germanium are  carbon, silicon, germanium, tin, lead

Q: Considering that the resistivity of gold (Au) at room temperature is equal to 24.4 x 10-9 Ω.m and…

A: Considering that the resistivity of gold (Au) at room temperature is equal to ρ0 = 24.4 x 10-9 Ω.m…

Q: Two coins lie 1.5m apart on a table. They carry identical charges. Approximately how large is the…

A:

Q: 12. Determine the work needed to move a 13.3 mC charge from 1.2 mm to 0.41 cm.

A:

Q: 1) The resistance of a copper at 30°C is 500. If the temperature coefficient of copper at 0°C is…

A: In this question,  Find the resistance R at T= 100°C If temperature coefficient = 0.00427 at 0°C…

Q: The maximum number of electrons in each shell of an atom is O a. 2 O b. 8 O c. 2n? where n is the…

A: Electrons are very important as they constitute the flow of currents.

Q: 5. When you touch the twisted wire with the positively charged pen, the electrons travel from the…

A: “Since you have asked multiple true/false questions, we will solve the first three questions for…

Q: Calculate the amount of charge represented by four million protons

A: Given  No. Of protons - 4 million To find charge by no.of protons

Q: An electron is ....... than a proton. A. LighterB. Heavier

A: The nucleus of an atom is made up of protons and neutrons, whereas the electrons are present outside…

Q: Copper has a conductivity of 6.45 x10' 1/ohm.m at 0°C. If an copper alloy is made containing 1.12%…

A: ρpure=1conductivity of coper         =16.45×107ρpure=1.55×10-8ohm.m

Q: What will be the charge to mass ratio of electron in C per kg

A: What will be the charge to mass ratio of electron in C per kg.?

Q: 5 Assume that 6.25 x 10¹5 electrons flow past a give point in a conductor every 10 s. Calculate the…

A: Given data, Number of electrons, n=6.25×1015 Time t=10 s

Q: An assembly consists of 1040 individual protons. What will be the total charge of the assembly?

A: Although charge of a Proton is 1.6×10-19 C (+1e).It is given that number of protons is 1040.

Q: In the formula for finding the resistance of a piece of copper wire , the value k indicates____. A.…

A: Solution: VD = 1.732 X K X Q X I X D /CM for 3 phase VD = voltage drop Q = Alternative current D =…

Q: A copper bar has a length of 20 ft. width of 4 inches and thickness of 0.5 inch, If the resistivity…

A:

Q: a 15-ampere hour ni-cad battery can provide 1 5a of current for ____ hours

A: Given,  A 15-ampere hour ni-cad battery can provide 15A of current for ____ hours

Q: What will be the total negative charge when an assembly of 123 electrons are present? Show detailed…

A: Electrons are negatively charged particles and the charge of a single electron is  In this case,…

Q: put the following elements in order from smallest atomic radius to largest atomic radius, iron,…

A: The atomic radius is given below, Iron = 156 pm Magnesium = 145 pm Nitrogen = 56 pm Zinc = 142 pm

Q: A 238 range voltmeter is having an accuracy of ± 1.38% of FSD. Calculate the following for the given…

A:

Q: How much energy is imparted to an electron as it flows through a 120,000,000,000,000 volt battery?…

A:

Q: What is the accuracy of a measurement of 26.5gm taken as against 25gm?

A: Given:- Measured Value = 25gm       True Value = 26.5gm

Q: What is the total charge of an assembly of 30 electrons

A: The total charge of an assembly of 30 electrons has been determined in the following section.

Q: Nichrome ribbon resistor elements each has a resistance of 1 ohm. The element is made from sheet of…

A:

Q: 1. Find the current in a conductor through which 2.5 x 1020 electrons pass in 8 s if the charge on…

A: Given No. of electrons passing(n)=2.5×1020 Time to pass the electrons(t)=8 s Charge on each…

Q: Which of the following material helped to produce a solar cell with 30% efficiency? a. Gallium…

A: solar cells are used to convert the solar energy into the electrical energy.

Q: What is the atomic number of Sodium Germanium Gallium

A: Given: To find the atomic number of Sodium Germanium Gallium

Q: solution for Convert 160 Mil wire to millimeter

A: We have to convert 160 Mil wire to millimeter.

Q: Radium decomposes at a rate proportional to the amount present. If half of the original amount…

A: Given , radium decomposes at a rate ∝ amount of radium present. Half of original amount dissapeared…

Q: A battery is charged with 2A for I hour, calculate how much Coulombs of electrons is charged during…

A: I=2A; Q=? t=1 hour

Q: What will be total charge of an assembly of 100005 electrons?

A: The charge on a single electron is,

Q: 84. What is the equivalent area in square inch for a conductor 336,400 circular mil? a. 0.428 b.…

A: This problem is mainly depends on unit conversions. The relation between mil and inch is given as…

Q: Find the total charge of 1 gram of proton

A:

Q: mines the atomic weight, the atomic nu

A: The atom carries the protons, electrons and neutron. The number of electrons is equal to the numbers…

Q: A certain battery with potential difference of 2 Volts can deliver 10 Joules of energy, determine…

A:

Q: What is the area in circular mils

A:

Q: What is the charge in coulombs of 5*10^22 protons?

A:

Types of Charge Carriers

A carrier is a type of object which carries a particular thing from one point to another point. For instance, people use different vehicles from one place to another, and the vehicle carries those people and acts as a carrier.