Radium decomposes at a rate proportional to the amount present. If half of the original amount disappears after 1000yrs, what is the percentage lost in 193 years?

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: Determine the pressure difference between points A and B in kPa. Given Specific Gravities: Benzene…

A: According to the question we have a specfic gravities for the several liquids is given which are,…

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

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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: 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: 3. A 60 AH nickel-cadmium battery has been fully recharged. How long could it supply a continuous…

A: Given, A nickel-cadmium battery has Charge capacity Q=60 Ah Current I=5 A

Q: The resistance of 250 x 103 ft. of copper wire (pno - 10.36 (cmil-A)/ft.) is found to be 25.9 ohm,…

A:

Q: Q1) A silver wire has conductance of 0.25 Siemens. What will be the resistance of a copper

A: Given- conductance of silver-Gsilver-0.25 simensdcopper=13dsilverwhere d is…

Q: 2. Prove that the total energy of electron is measured in units of joule.

A:

Q: What is the diameter of a 1.00-m length of tungsten wire whose resistance is 0.32 2? (the…

A: Given data, A tungsten wire have L=1.00 mR=0.32 Ωρ=5.6×10-8 Ωm

Q: If 2μA of current flows through a component for 5ms, what will be the charge in that component

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Q: If 5.0 x 1021 electrons pass through a 10.6 Q resistor in 10 min, what is the potential difference…

A: Given 5.0 x 1021 electrons pass through a 10.6 resistor in 10 min. charge of the electron to be -1.6…

Q: quantity defined as amount of work done over time

A: Here we discuss about above given MCQs.

Q: 10:32 Quizzes A-LAMP/E26 WARM WHITE 270OK You have a Switch LED Lightbulb with the following…

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

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Q: 16. The resistance of a copper wire at 30°C is 50 Q. If the temperature coefficient of copper at 0°C…

A: resistance at Temperature T  = R0(1+tempereture coefficientα0×T given temperature at 30 degree  = 50…

Q: Determine the resistance of a bus bar made of copper if the length is 10 meters long and the cross…

A: The resistance of copper bar is given as: R=ρLA where L is length of copper bar, ρ is resistivity…

Q: What is the mass of an assembly of 1000 electrons?

A: In this case, the mass of an assembly of 1000 electrons is to be determined.

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: The car battery supplies 12V, how much work is done to move the charge of 2C over a certain period…

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Q: 1. What potentlal difference must be applled to the clrcuit if it takes 40 Joules of energy to…

A: Potential difference( PD ) is measured in volts and it tells about the work done per unit charge So…

Q: QI)I- What is the voltage between two points if 100 mJ of energy are required to move 50 x 10s…

A: As per Bartleby guidelines we are allowed to solve only one question,please ask the rest again.

Q: Find the energy absorbed by the element over a 10 seconds interval, when voltage is 4V and current…

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

A: Solar Panel produces some waste material which include heavy metals such as silver, lead, arsenic…

Q: charge of 240 C is transferred in 2 minutes. Calculate the current flowing.

A: Current flowing through element given by i= q/t q= 250C, t= 2min = 120sec.

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: A total of 0.8 kg of water at 20 degC is placed in a 1-kW electric kettle. How long in minutes will…

A: The solution can be achieved as follows.

Q: Calculate the resistance of 915 metres length of a wire having a uniform cross-sectional area of…

A: We know resistance formula .

Q: A material is containing 71 % water. After drying it is found that 60% of the original water has…

A: Given that:71% of a material is water.After drying 60% of original water is removed.

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…

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

A:

Q: 4. What is the resistance of a copper wire 200 ft long and 0.016" in diameter (T = 20°C)?

A: We are authorized to answer one question at a time, since you have not mentioned which question you…

Q: Voltage is the energy required to move a unit charge through an element, measured in volts (V). *…

A: Given, Voltage is the energy required to move a unit charge through an element, measured in volts?…

Q: wire sample (1mm in diameter by 1m in length) is placed in an electrical circuit at 20°c. A voltage…

A:

Q: If the thickness, of an insulator is increased then its breakdown voltage 1) remains unchanged 2)…

A: Breakdown voltage: It is defined as the minimum voltage that should be applied to the insulator to…

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

A:

Q: 10. A plate having a total surface area of 420 cm? is to be gold-plated to a thickness of 0,12 mm.…

A: Total surface area of plate =420cm2    =420x10-4m2Thickness of gold plating = 0.12 mm  =0,12x10-3m…

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

A:

Q: If 1.27 × 1021 electrons move at a given point in the circuit for 100s, how much current is flowing…

A: Resistors, inductors and capacitors form an integral part of any electrical circuit. A source,…

Q: A 1220 range voltmeter is having an accuracy of + 1.54% of FSD. Calculate the following for the…

A:

Q: Determine the total pressure (in kPa) at the bottom of a 0.75-m cylinder completely filled by a…

A:

Q: What is the maximum value of luminous efficacy for any light fixture * 100% 95%

A: The explanation is as follows.

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: Suppose you wish to fabricate a uniform wire out of 1g of copper. The resistance of wire is to be…

A: Given data: The resistance of copper wire = 0.5 Ω Resistivity = 1.7×10-8 Ωm Mass density = 8.92×103…

Q: 6.1 A Car battery is rated for 12 Volts, 5 Ah rechargeable battery can be operated for about 10…

A: Given, A battery with V=12 VQ=5 Aht=10 h

Differential amplifier

There are two amplifying stages with common degeneration in a differential amplifier.