I was kind of curious about a few question in my book.
It asked me What is used as a depolarizer in a flaslight cell?
Well first i'd have to know which is being used for the cell. I mean, is it primary or secondary? And after I knew that, i'd have to figure out the company's secret formula. Of course there are some batteries listed in this book. Tell me, what do you think of this answer?
7. Zinc, ammonium chloride, and manganese dioxide.
Another book question which is truly important and the question wasn't very clear on it.
Lead-acid batteries should be connected to the charger _______ the power is applied.
For the blank I put: before.
Is that right?
Because there may be hydrogen gases coming out of the battery you aren't aware of and when you hook up the after the charger is on you could create a spark and BOOM!
Another good question the book had was
Which combination of cells should be used for a heavy load?
a. series
b. parallel.
I said both. Mainly because if its heavy it will probably need lots of electrolyte from the battery and need to sustain a good current.
Is that right?
Also, something I've never understood being in this electronics class was how phonographs work. Seriously, this book tell me that mechanical energy added to a crystal flexes it.
I'm thinking.. "wtf? I thought only electrical energy could distort the crystal, why is this book telling me mechanical can bend the crystal, thus having the crystal turn the mechanical energy into electrical."
Pin going up and down creates mechanical force.
Crystal bends from this mechanical force and in turn creates electrical energy.
That doesn't sound right to me.
Why would mechanical force distort the crystal? The book told me only electric could do that. Does someone think they could broaden on this?
It asked me What is used as a depolarizer in a flaslight cell?
Well first i'd have to know which is being used for the cell. I mean, is it primary or secondary? And after I knew that, i'd have to figure out the company's secret formula. Of course there are some batteries listed in this book. Tell me, what do you think of this answer?
7. Zinc, ammonium chloride, and manganese dioxide.
Another book question which is truly important and the question wasn't very clear on it.
Lead-acid batteries should be connected to the charger _______ the power is applied.
For the blank I put: before.
Is that right?
Because there may be hydrogen gases coming out of the battery you aren't aware of and when you hook up the after the charger is on you could create a spark and BOOM!
Another good question the book had was
Which combination of cells should be used for a heavy load?
a. series
b. parallel.
I said both. Mainly because if its heavy it will probably need lots of electrolyte from the battery and need to sustain a good current.
Is that right?
Also, something I've never understood being in this electronics class was how phonographs work. Seriously, this book tell me that mechanical energy added to a crystal flexes it.
I'm thinking.. "wtf? I thought only electrical energy could distort the crystal, why is this book telling me mechanical can bend the crystal, thus having the crystal turn the mechanical energy into electrical."
Pin going up and down creates mechanical force.
Crystal bends from this mechanical force and in turn creates electrical energy.
That doesn't sound right to me.
Why would mechanical force distort the crystal? The book told me only electric could do that. Does someone think they could broaden on this?