A cell of emf E having an internal resistance R varies with R as shown in figure by the curve

A cell of emf E having an internal resistance r is connected to an external resistance R. The potential difference V across the resistance R varies with R as shown in figure by the curve: R

Current I is being driven through a cell of emf E and internal resistance r as shown in the figure. Choose the following correct statements.

Current I is being driven through a cell of emf E and internal resistance r as shown in the figure. Choose the following correct statements.

A resistance R is connected to a cell of EMF E and has an internal resistance r as shown in the figure. The voltage across R is measured using and ideal A voltmeter and circuit current is measured by an ammeter. A rheostat of negligible resistance is used to vary the current in the circuit. -Write down the expression for current in the circuit and voltage across R at any instant.

Four idential cells each having e.m.f. E, internal resistance r are connected as shown in figure. Find the potential difference between: (i) A and B (ii) A and C

Four idential cells each having e.m.f. E, internal resistance r are connected as shown in figure. Find the potential difference between: (i) A and B (ii) A and C

Four idential cells each having e.m.f. E, internal resistance r are connected as shown in figure. Find the potential difference between: (i) A and B (ii) A and C

A battery of emf E and internal resistance r is connected to a variable resistor R as shown in figure. Which one of the following is true ?

A cell of emf E and internal resistance ® is connected across an external resistance, R. The cell shall drive maximum current through the external resistance R only if