EMF #!#Potential difference across a battery#!#PD across a short battery

In following diagram boxes may contain resistor or barrery or any other element then determine in each case (a) E.M.f. of battery (b) Battery is acting as a source or load ( c) Potential difference across each battery (d) Power input to the battery or output by tthe battery. ( e) The rate at which heat is generated inside the battery. (f) The rate at which the chemical energy of the cell is consumed or increased. (g) Potential differnce across box (h) Electric power output across box.

Potential difference across the terminal of a non ideal battery is

Can the potential difference across a battery be greater than its emf?

State the condition under which the terminal potential difference across a battery and its emf are equal.

In the circuit shown in figure E_1=10 V, E_2=4V, r_1=r_2=1Omega and R=2Omega . Find the potential difference across battery 1 and battery 2.

Assertion : Potential difference across the terminals of a battery is always less than the emf of the battery. Reason : During discharging of a battery potential differnce across to terminals of a battery is V = E -ir therefore V lt E

A battery of emf E and internal resistance r is connected across a resistance R. Resistance R can be adjusted to any value greater than or equal to zero. A graph is plotted between the current passing through the resistance (I) and potential difference across the termainals of the battery (V). Maximum power developed across the resistance R is

Which of the following statement is/are correct? I Potential difference across the terminals of a battery can be greater than its emf. II, When current is taken from a battery. V=E-Ir

A car battery with a 12V e.m.f. and an internal resistance of 0.04 Omega is being charged with a current of 50A. The potential difference V across the terminals of the battery are:

A shortage battey with an emf of 10V and an internal resistance 1Omega is connected across an extenal resistance R and liberates of 9W power. Find the potential difference across the teminals of the battery and the value or values of R.