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both photocells and solar cells are photovoltaic cells photocells are those that use photoelectric effect to convert light into electric energy eg in automatic switches solar cells are those which use p-n junction (semiconductors) yeah i think thats wat it is

DO PHYSICS !!!! I DO BOTH CHEM AND PHYS BUT PHYS IS WAY BETTER CHEM IS SO BORING...... YR 12 PHYSICS IS WAY MORE INTERESTING

energy is conserved when the coil rotates in a magnetic field, the coil cuts the field lines and thus an emf is produced. what Jac is trying to say is this emf is in the opposite direction (ie back emf). it first says that IF this emf was not in the opposite direction THEN it would violate...

yes on a generator its the same principle as the back emf its cos the coil is going to produce a current to oppose the change in magnetic flux

this thing is getting a little frastrating additional texts for everything this is crazy i do SB too

hey i do that module too hope this helps though 1. getaway ch9 cant remember the time 2. that star trek stuff "Enterprise" think its on tuesday nights around 10:45 (if its still on) 3. Try one of those travel guides, small articles (online ones r good too) 4. personal journals of...

Hey guys i want to do engineering when i get to uni how is it??? u ppl find it fun?

need some help on the hitchhiker guide anyone got any notes on it? i found some but all of them talk about "satire" rather than the concept of "travel and exporation" thanks

why notes? just read ur book and understand the stuff wait till u get to yr12 to ask for notes nothing in yr11 is going to be tested so just know ur work

i heard the excel hsc one isnt good i bought the yr11 one and it was crap eco is a weird subject some books are too detailed and some just summarise too little to be useful

2-3??? why do we have to do a collection of poems thats a lot 40min is not enough for like 2-3 own text, 1 stimulus booklet and 2-3 skrzynecki thats like 5 sentence for each

Mate this is a extract of my notes . not perfect and the calculations r too hard to type up so u gonna need to check out the text books but excel has pretty good questions involving it Titration We used anhydrous sodium carbonate as the standard solution and hydrochloric acid as the...

the more the H+ ions the lower the pH and the lower the H+ ions the closer the pH is to 7

actually i have just looked at my economics book "Updated Economics" and it seems that there is a slight problem to my explanation or there is problem with the book. If anyone has it please explain this: for the absolute advantage principle the example uses the idea that the worker...

This is hard to explain with english, i like the maths side of it better let me try then: absolute advantage is when one country (X) produces more of say CARS than country (Y) using the same amount of resources (labour). I dont mean same amount of metal. In reality ofcos both X and Y...

hey morgues just wanna ask if anyone knows how many poems we suppose to talk about in the hsc

Hey thanks for that i've added you, when u usually on? i've done crossing the red sea , understand that pretty well having trouble with post card, 10 mary street and felix s i dont think i'll do chronic ward, migrant hostel or kornelia cos i just dont understand them one bit (unless you...

Anyone have P.S notes? I'm having problem understanding his poetry i understand what he is trying to bring out but having trouble relating it to "Changing perspectives"

Teachers tend to get questions from each other found out our school's last year trial was a combo of independent, catholic and westa

You could try using Apollo 13 Getaway Red Dwarf Star Trek Lonely Planet guides