Nope....

This is NOT an electronics News Group so I will not go into an explanation why Ohm's Law is
insufficient and Kirchoff's Law is apropos.

I will say model the circuit. Where...
- R(load) is less than R(internal resistance of battery)
- R(load) equals R(internal resistance of battery)
- R(load) is greater than R(internal resistance of battery)

Dave



"Gymmy Bob" wrote in message ...
| "Kirchoff" has nothing to do with this one except the blatantly obvious.
| Ohm's law is the one you want there son.
|
| "David H. Lipman" wrote in message
| ...
| The *BEST* statement and conforms to Kirchoff's Laws.
|
| Dave
|
|
|
|
| "William Graham" wrote in message
| news:Tv%Dc.123150$eu.69086@attbi_s02...
| |
| | "Robert Mathews" wrote in message All batteries
| have
| | internal resistance and goes up as the battery ages..
| |
| | This is true, but the internal resistance of the battery is only a very
| | small percentage of the resistance of the load, with the exception of a
| car
| | battery during the "start" operation, where the battery is very heavily
| | loaded. This is why a car battery's output drops to nearly 8 volts while
| the
| | starter is turning over the engine. Normally, the load puts so little
| load
| | on the battery that the voltage difference is unmeasureable.
| | There is one thing that I forgot to mention, however. Sometimes the
| | manufacturer specifies a certain type battery because of charging
| | considerations. Naturally, if the batteries can be charged while inside
| the
| | camera or other device, and the manufacturer supplies the charger, then
| only
| | the specific battery that the manufacturer recommends should be used. -
| | Worst case sceneareo would be if one tried to use non-rechargeable
| batteries
| | such as alkelines, and the charger would overheat and explode them while
| | they wre inside the device, damaging that device. - In this case, I
| agree
| | completely. - Only use the manufacturers recommended battery.
| |
| | A 12 volt light bulb will operate the same with a lead-acid truck
| battery
| | that is capable of delivering 200 amperes, and not burn out one
| second
| | sooner that it would if operating on eight 1-1/2 volt AA flashlight
| | batteries. Now, having said that, it is certainly true that there are
| | types
| | of batteries that differ in voltage output by slight amounts.
| Lithiums, I
| | believe, put out 1.55 volts per cell, and not 1.5 as do alkalines.
| Also,
| | the
| | Ni-mhd type might put out only 1.2 volts per cell, so a bulb that is
| | nominally rated for 1.5 volts would last longer (because it burns
| cooler)
| | on
| | a set of Ni-mhd batteries than it would on the same set of lithiums.
| But
| | it
| | isn't the fault of the battery type, but rather the total voltage
| that is
| | impressed on the bulb filament. 12 volt lead acid batteries, for
| example,
| | can be charged up to around 14 volts, so one should be careful when
| one
| | uses
| | them in devices that are meant for a nominal 12 volts, not because of
| | their
| | internal resistance, but simply because 14 volts might smoke the
| | device.........
| |
| |
| |
| --------------------------------------------------------------------------
| | --------------------------
| | Life is not measured by the number of breaths we take, but by the
| moments
| | that take our breath away. (George Carlin)
| |
| |
|
|
|
|