Attention Evryone !!!

[acidglow]

What was the answer of question 2 part 1 in physics sec B .....the experiment to show the effect of temp on the ressistance of a piece of wire.....what was the circuit diagram ?????

 

[Hashim]

draw a battery or cell
an ammeter in series
a voltmeter across the wire

 

[M.Usman Khan]

draw a switch 2......
also show that ur heating the wire in some manner....e.g. water bath.
drawing switch is ofcourse not neccesary...if i remember correctly from the marking scheme.

 

[book worm]

you can also use a variable resistor in place of heating source... Check Explaining Physics by Pople at Page 252

 

[Hashim]

draw a switch 2......
also show that ur heating the wire in some manner....e.g. water bath.
drawing switch is ofcourse not neccesary...if i remember correctly from the marking scheme.

but a water bath would be dangerous coz of a risk of being electrocuted

 

[shahoo]

draw a switch 2......
also show that ur heating the wire in some manner....e.g. water bath.
drawing switch is ofcourse not neccesary...if i remember correctly from the marking scheme.

but a water bath would be dangerous coz of a risk of being electrocuted

correct..!!