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How do photovoltaic cell systems work?
In photo voltaic cells there copper plate and on this plate there is a layer of cupprous oxide layer. On this cuprous oxide layer again there is a thin layer of silver.When light having the threshold frequency is incident on the silver layer it is focussed on the cuprous oxide layer and the electrons on this layer are ejected out and pushed on to the copper plate.Here the copper plate acts as an anode and hence the flow of electrons takes place which constitutes the electric current. The flow of electric current can be observed by coonecting a galvanometer in the circuit attached from silver layer to copper plate. The use of silver layer is that it will stop the ejection of electrons out from it. And this is the photo cell used most widely.It costs 28-30 Rs
What is the reaction of force wen a hammer hits a nail?
When a hammer hits a nail, the force applied by the hammer causes the nail to experience an equal and opposite reaction force. This reaction force drives the nail into the surface it is being hammered into.
What is the reaction force when a hammer hits a nail?
The reaction force when a hammer hits a nail is called the law of motion. This motion falls under Newton's Third Law.
What is a loud noise created when lightning rapidly hits the atmosphere?
The loud noise is called 'thunder' or 'a thunder clap'. The sudden increase in pressure and temperature from lightning produces rapid expansion of the air surrounding and within a bolt of lightning. In turn, this expansion of air creates a sonic shock wave which produces the sound of thunder.
What happens when steam hits a cold object like a plate?
When steam hits a cold object like a plate, it loses heat rapidly, causing it to condense back into water. This process releases latent heat, warming up the plate. Convection currents may also form, carrying the heat away from the steam and facilitating the cooling process.
What metal is a lightning rod made of?
Any metal that will conduct electricity. Steel works fine, since it is strong. A ground rod driven into the ground and connected to the lightning rod with a wire or cable. The ground rod is usually copper clad (or plated) steel.
How does lightning fires start?
The lightning hits trees, then the heat makes the fire.
Why aren't passengers usually injured when lightning hits a plane?
The lightning has no path to ground.
What happenswhen a lightning bolt hits a raging tornado?
Nothing happens. The lightning will not affect the tornado.
Can you make glass with lightning?
lightning makes glass when it hits sandy soil. its called a fulgurite.
Why does copper kill bacteria?
Copper is a highly conductive metal. The energy in cells tends to escape into copper, thus weakening its outer layers until they collapse. The oxygen and other chemicals spill onto the copper and copper ions enter the cell to cause more destruction. However, copper does not rust. Instead, when oxygen hits its surface, copper creates a protective layer called patina. This chemical reaction prevents oxygen from seeping into the metal.
Does the ocean boil when lightning hits?
no it never wie
Which is more likely to be hit by lightning a metal or a wooden boat why?
metal because lightning hits metal mostly
When lightning hits a lightning rod where does the lightning go?
When lightning strikes a lightning rod, the rod provides a path of least resistance for the electricity to travel safely to the ground. The lightning is then conducted harmlessly into the earth, minimizing the risk of damage to nearby structures.
What happens when lightning hits a car as you are driving?
Emile Heskey
If the baseball hits the plate what is the call?
an out
When lightning hits a lightning rod does it create spark or fire?
No, the current simply travels through the rod and spreads into the earth.
