Negligible resistance of devices in circuits


Okay and again same applies to a voltmeter that's why in the statement I'm not sure if it's stated there but I remember there's somewhere where they said ammeter 1 and ammeter 2 represents ammeter of negligible resistance. 

So that means those emitters connected on those wires they don't have any resistance okay. So again there's no heat so the reason why you might have an internal resistance is because you know guys those cells sometimes you can even feel the heat okay. 

So that heat is as a result of internal resistance so guys that was us answering question nine point one okay. So that's how you state the definition or you state ohm's law so now let's move to the second question, so the second question says calculate the reading on ammeter one okay. 

So this question is allocated four marks. Obviously guys there was no need for us to mark the first question it's obvious it's allocated two marks so for just stating the ohm's law in words you score full marks. 

Okay so now the question says calculate the reading on emitter. What does ammeter read, the current. Okay so they don't have to say calculate the current they just say calculate the reading on ammeter 1 then you know you've got two ammeters where's emitter one? 

There's emitter one, what does ammeter do It reads current flowing there okay, so ladies and gentlemen very much important that you should know. 

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