We shall consider steady one-dimensional heat conduction. By steady we mean that temperatures are constant with time; as the result, the heat flow is also constant with time. By one dimensional we mean that temperature is a function of a single dimension or spatial coordinate.

Hence, in a one-dimensional system, temperature gradients exist along a single coordinate direction, and heat transfer occurs exclusively in that direction. The system is characterized by steady state conditions if the temperature at each point is independent of time.

A one-dimensional coordinate system is defined by its origin and a single basis vector that defines the positive direction of the coordinate axis (x-axis). The coordinates of any point in such a system are determined by a single real number.

1 Expert Answer The simple answer is YES. A particle in a 1-dimensional box is a fundamental quantum mechanical approximation describing the translational motion of a single particle confined inside an infinitely deep well from which it cannot escape. The lowest possible energy of a particle is NOT zero.

The n = 1 state is known as the ground state, while higher n states are known as excited states. If the electron in the atom makes a transition from a particular state to a lower state, it is losing energy.

Note that as n increased, the energy of the wavefunction increases (Equation 3.5. 12) and both the number of nodes and antinodes increase and the frequency of oscillation of the wavefunction increases.

A simple expression for the energy of an electron in the hydrogen atom is:

1. E=−13.6n2 where the energy is in electron volts.
2. n is the principle quantum number.
3. So for an electron in n=1 :
4. E=−13.6eV.
5. To convert to joules you can x this by 1.6×10−19.

How to size a UPS

1. List all equipment to be protected by the UPS.
2. List the amps and volts for each device.
3. Multiply the VA by the number of pieces of equipment to get the VA subtotals.
4. Add the VA subtotals together.
5. Multiply the total by 1.2 to get the grand total.
6. Use the grand total to select a UPS.

New energy-efficient UPSs generally range from 92% to 95% efficient. However, a UPS does not always operate as efficiently as its rating suggests. Instead, its efficiency follows a curve based on its “load factor” —how much of its power capacity is being used.

The best uninterruptible power supply will safeguard your PC from unexpected power loss and surges….The best UPS for gaming PCs

1. Cyberpower CP1500PFCLCD. The best UPS for most gamers.
2. Cyberpower EC650LCD. The best UPS for your network and accessories.
3. APC BE600M1.

For a common measurement, a 1500VA-rated UPS will run a computer for less than an hour. If you get more than 10 minutes of run time, you can run a PC, networking gear, and monitor.

Apart from providing power during electricity blackouts, a UPS protects your electrical equipment (computer, laptop, TV, Hi-Fi, fridge/freezer, microwave oven, or washing machine, etc.) against power surges.

Best inverters for home use in India

• Luminous Zelio+ 1100 Home Pure Sinewave Inverter UPS.
• V-Guard Prime 1150 Digital Inverter UPS.
• Luminous Hkva 2 Kva Sine Cruze Wave UPS Inverter.
• V-Guard Smart Pro 1200 with Bluetooth Connectivity Digital Sinewave UPS.
• Microtek UPS Hybrid Sinewave Inverter.
• Luminous Zolt 1100V Inverter Sine Wave Home UPS.