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Conductivity and Resistivity

a voltmeter i...

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a voltmeter is connected in parallel with variable resis†an ce R which is in series with an ammeter and a cell as shown in figure. for one value of R, the meters read 0.3A and 0.9V. for another value of R the readings are 0.25A and 1.0 v. what is internal resis†an ce of

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Q. A voltmeter is connected in parallel with a variable resistance

R

which is in series with an ammeter and a cell as shown in figure. For one value of

R

, the meters read

0.3 A

0.9 V

. For another value of

R

the readings are

0.25 A

1.0 V

. What is the internal resistance of the cell

Q. An ammeter and a voltmeter of resistance

R

are connected in series to an electric cell of negligible internal resistance. This reading are

A

V

respectively. If another resistance

R

is connected in parallel with the voltmeter, then

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