Question

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Answer 1

Answer:

a)

Explanation:

a) average resistance = sum of resistance/total no of resistance

Here using Ohm's law, V=IR

Average resistance=(4/9+5/11.25+6/13.5)/30=(0.44+0.44+0.44)/3=0.44Ω

b) Nature of the graph will be that it is a straight line graph

c)The graph proves Ohm's law

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Answer 2

Answer:

a)1)V=4volt

I=9A

R=V/I

=4/9

=0•44 ohm

2) Similarly,

R =V/I

= 5/11•25

=0•44ohm

3) Similarly,

R=V/I

=6/13•5

= 0•44ohm

average resistance =0•44ohm

Explanation:

b) Graphical presentation of current & potential difference shows that current is more than potential difference &same resistance•

c) This graph proves ohm's law•

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