What voltage is produced by solar cell? approximately 0.5 to 0.6 volts What causes voltage in solar cells? Voltage is generated in a solar cell by a process known as the “photovoltaic effect”. The collection of light-generated carriers by the p-n junction causes a movement of electrons to the n-type side and holes to the […]
What are the basic concepts of thermodynamics?
What are the basic concepts of thermodynamics? Thermodynamics, science of the relationship between heat, work, temperature, and energy. In broad terms, thermodynamics deals with the transfer of energy from one place to another and from one form to another. The key concept is that heat is a form of energy corresponding to a definite amount […]
What is a group of interconnected computers called?
What is a group of interconnected computers called? A network is a group of computers (or a group of smaller networks) that are connected to each other by various means, so that they may communicate with each other. What is a collection of computers and devices connected together called? A network is a collection of […]
What is bright field image in TEM?
What is bright field image in TEM? An image that is produced by the transmitted wave (the wave that undergoes no diffraction) in a diffraction pattern formed on the back focal plane of the objective lens, using the objective aperture. What is used to produce the imaging beam in a TEM? Transmission electron microscopy is […]
Which gear will rotate faster?
Which gear will rotate faster? Increase speed: If you connect two gears together and the first one has more teeth than the second one (generally that means it’s a bigger-sized wheel), the second one has to turn round much faster to keep up. So this arrangement means the second wheel turns faster than the first […]
What is the potential energy and kinetic energy when you release the ball?
What is the potential energy and kinetic energy when you release the ball? When you release the ball, it begins to fall down the track acquiring a speed, v. The ball’s potential energy (PE) is being converted into an equal amount of kinetic energy (KE)! At the bottom of the loop, all of the ball’s […]
How do you make a killer first impression?
How do you make a killer first impression? Here are 8 killer ways you can make strong first impressions: Dress to impress. I know it sounds trite, but appearance is our first filter. Wipe that look off your face. Appear Interested. Politeness matters. Offer a firm handshake. Body language. Arrive early. Prepare ahead of time. […]
How do I see parentheses in stack?
How do I see parentheses in stack? Push an opening parenthesis on top of the stack. In case of a closing bracket, check if the stack is empty. If not, pop in a closing parenthesis if the top of the stack contains the corresponding opening parenthesis. If the parentheses are valid, then the stack will […]
How were simple machines used in ancient times?
How were simple machines used in ancient times? People have used simple machines for thousands of years. Levers, ramps, and pulleys were used in ancient Egypt to build the Great Pyramids. Native Americans who used spears to hunt were using wedges. In the third century BC, the Greek scientist Archimedes invented a way to lift […]
What is the difference between natural gas and LPG?
What is the difference between natural gas and LPG? Gas is gas right? Well chemically it is a different gas, natural gas is methane whereas lpg or bottled gas in propane. The difference is subtle and we will discuss it later but the fundamental difference between LPG (liquid propane gas) and natural gas is the […]