What are button batteries and where are they found? children’s toys. flashing novelties (e.g. flameless candles) remote controls. thermometers. car keys. watches. calculators. scales. Where are button batteries found? Lithium coin-sized and smaller batteries, often referred to as button batteries, … Continue reading →

READY WHEN YOU ARE: RELiON R4000 Dry Series are deep cycle batteries that deliver high capacity from the get-go. Unlike traditional lead-acid batteries that need to be “worked up” to increase capacity, these batteries give you the range or hours … Continue reading →

Electrolytes may be covalent compounds that chemically react with water to produce ions (for example, acids and bases), or they may be ionic compounds that dissociate to yield their constituent cations and anions, when dissolved. Are electrolytes considered ionic compounds? … Continue reading →

The secondary cell wall is a structure found in many plant cells, located between the primary cell wall and the plasma membrane. The cell starts producing the secondary cell wall after the primary cell wall is complete and the cell … Continue reading →

No. The “flashlight” is an LED, and LED life expectancy is typically 50,000 hours or more. This suggests that if you left it on for 8 hours every night, the LED would last something like 17 years. LEDs don’t draw … Continue reading →

If you do not intend to use your flashlight in the near future, remove the batteries. Storing batteries inside any electronic device is never a good idea, because it increases the chances of corrosion. Place the flashlight batteries in a … Continue reading →

One way you might suspect lead is seeping from your plumbing into your water is if the first water from the tap tastes sweeter than water after the tap has run a while. Lead tastes sweet. In fact, lead (II) … Continue reading →

Ionic compounds are solids and some what hard because of strong force of attraction between positive and negative ions. Are ionic bonds always solid? Ionic compounds typically are solids at room temperature. They form a crystal lattice structure when more … Continue reading →

The disadvantages are (1) lack of physical and psychological space for the hens, (2) lack of exercise resulting in a higher incidence of metabolic disorders, (3) lack of nesting opportunities resulting in severe frustration for many birds each time an … Continue reading →

same emf. When batteries are connected in parallel it must be ensured that they have the same emf to avoid short circuits and to avoid any circulating current between batteries. When connecting two batteries in parallel it should be ensured … Continue reading →

ten outlets. The answer to the question how many outlets on a 20 amp circuit is ten outlets. Always comply with the 80% circuit and breaker load rule, allowing a maximum load of 1.5 amps per receptacle. Remember that your … Continue reading →

Silver is a core element for the manufacture of solar panels, as it has the highest electrical and thermal conductivity of all metals. As such it is heavily used in solar panels. The financial markets are also well aware of … Continue reading →

Requirement: Provide at least two 20-amp, 120-volt circuits to supply power to GFCI (Ground Fault Circuit Interrupter) receptacles for countertop and eating areas. Why: The 20 amps are required (vs. 15 amp) for the higher power requirements found in kitchens. … Continue reading →

Gold: 2.5-3. Silver: 2.5-3. Aluminum: 2.5-3. Copper: 3. What metals are stronger than gold? Platinum is hard (twice as hard as Gold), but there are 4 other Metals that are harder!Platinum 4 – 4.5 Titanium 6 Hardened Steel 7 – … Continue reading →

While an apple will not conduct enough electricity to power a light bulb, you can verify the electricity level with a voltmeter. If you do not have apples handy, try substituting a lemon, orange or even a potato. Is an … Continue reading →