If a variable resistance is connected to a cell of constant emf, then the graph which represents the correct relationship between current I and resistance R is

Which graph best represent the relationship between conductivity and resistivity for a solid ?

Variation of resistance with cell constant is given in which of these graphs?

if the cell had been connected in parallel (instead of in series) which of the graphs would have shown the relationship between total current I and n?

A cell of emf E has an internal resistance r & is connected to rheostat. When resistance R of rheostat is changed correct graph of potential difference across it is

A battery consists of a variable number n of identical cells having internal resistance connected in series. The terminals of the battery are short circuited and the current I measured. Which one of the graph below shows the correct relationship between I and n ?

A resistance R_(1) is connected to a source of constant voltage . On connecting a resistance R_(2) in series with R_(1)

Consider circuit as shown . Which of the graph best represent V-l relationship across the variable resistance R.

An ammeter and a voltmeter of resistance R connected in seires to an electric cell of negligible internal resistance. Their readings are A and V respecitvely. If another resistance R is connected in parallel with the voltmeter

An ammeter and a voltmeter of resistance R connected in seires to an electric cell of negligible internal resistance. Their readings are A and V respecitvely. If another resistance R is connected in parallel with the voltmeter

A cell of emf epsi and internal resistance r is connected across a load resistance R . (i) Find the maximum power delivered at the load ? (ii) Draw the power (P) vs load resistance (R) graph .