Two indentical batteries, each of emf `2V` andinternal resistance `r=1Omega` are connected as shown. The maximum power that can be developed across `R` using these batteries is

Two identical batteries, each of EMF 2V and internal resistance r =1Omega are connected as shown. the maximum power that can be developed across R using these batteries is :

Two identical batteries, each of e.m.f. 2 volt and internal resistance 1.0 ohm are available to produce heat in an external resistance R = 0.5 ohm by passing a current through it. The maximum Joulean power that can be developed across R using these batteries is

Three batteries of emf 1V and internal resistance 1 Omega each are connected as shown. Effective emf of combination between the points PQ is –

A battery of emf 2V and internal resistance 0.5(Omega) is connected across a resistance in 1 second?

Two identical batteries each of emf E= 2 volt and internal resistance r=1 ohm are available t . produce heat in an external resistance by passing a current through it. What is the maximum power that can be developed across an external resistance R using these batteries?

When two identical batteries of internal resistance 1Omega each are connected in series across a resistor R, the rate of heat produced in R is J_1 . When the same batteries are connected in parallel across R, the rate is J_2 = 2.25 J_2 then the value of R in Omega is

Four resistance are connected to a DC battery as shown in figure. Maximum power will be developed across ......... Ohm resistance.