The open circuit EMF of the Weston standard cell used for standardization of potentiometer is 1.0183 V. What is the value of EMF of Weston standard cell at 20 C? Determining the Condition of a Weston Standard Cell The un-saturated … Continue reading →

Explanation: Capacitor does not allow sudden changes in voltage because these changes occur in zero time which results in the current being infinity, which is not possible. Why do capacitors resist changes in voltage? Capacitors resist changes in voltage because … Continue reading →

Lithium cobalt oxide batteries are manufactured from lithium carbonate and cobalt and are also known as lithium cobaltate or lithium-ion cobalt batteries. These batteries are used in cell phones, laptops, and electronic cameras because of their high specific energy. What … Continue reading →

In other words, unless you’re traipsing around aboveground zero at the NTS (which you can’t, since it’s strictly off-limits to civilians), your biggest worry in Las Vegas is the same as in other American cities with no history of atomic … Continue reading →

3.7V. Voltage / Cell Count A LiPo cell has a nominal voltage of 3.7V. For the 7.4V battery above, that means that there are two cells in series (which means the voltage gets added together). This is sometimes why you … Continue reading →

Nuclear energy produces radioactive waste A major environmental concern related to nuclear power is the creation of radioactive wastes such as uranium mill tailings, spent (used) reactor fuel, and other radioactive wastes. These materials can remain radioactive and dangerous to … Continue reading →

If a 4 amp capacity battery charger is connected to the dead flat battery it will take 90÷4=22.5 hours to recharge the battery. The voltage correlates to what the hypothetical resistance in Ohms is at 90 amps if for example … Continue reading →

Gold had long been considered a non-magnetic metal. But researchers recently discovered that gold can in fact be magnetized by applying heat. Gold had long been considered a non-magnetic metal. But researchers at Tohoku University recently discovered that gold can … Continue reading →

Gamma rays have too much energy per photon to be easily used to directly drive electrons as in regular solar panels. You mean the minimum energy of a photon you can absorb is that with the band gap energy. Is … Continue reading →

Scientists have developed new technology that uses nuclear waste to generate electricity in a nuclear-powered battery. A team of physicists and chemists from the University of Bristol have grown a man-made diamond that, when placed in a radioactive field, is … Continue reading →

It can be done. Long-term nuclear waste can be “burned up” in the thorium reactor to become much more manageable. If not for long-term radioactive waste, then nuclear power would be the ultimate “green” energy. Is it possible to destroy … Continue reading →

Common Reasons Drivers May Avoid EVs The most common reasons drivers avoid EVs include fear the battery will run out of charge before reaching their destination, also known as “range anxiety,” fear of too few charging stations, long charge times, … Continue reading →

Leaking Li-ion battery = production of hydrofluoric acid Two chemical reactions can provoke the production of hydrofluoric acid: Hydrolysis of PF6– ions of the electrolyte in the presence of water. Combustion of those PF6– ions. How do I know if … Continue reading →

Can you connect LED lights directly to a battery? An LED has almost no internal resistance. Therefore, if you hook it up directly to a battery, it will burn out quickly as the current flows unimpeded through the LED. you … Continue reading →

However, we can give you an approximate charging time if you have a dead Tesla battery and need a full charge. Here are the estimates of how long it takes to fully charge a tesla: Level 1 (120 V): 20 … Continue reading →