Primary Cell and Secondary Cell

Two sources of equal emfs are connected in series. This combination is connected to an external resistance $R$. The internal resistances of the two sources are $r_1$ and $r_2\left(r_1>r_2\right)$. If the potential difference across the source of internal resistance $r_1$ is zero then the value of $R$ will be

A circuit contains two cells one is primary and the other one is secondary. Both primary cell and secondary cell are rechargable.

Secondary cells can not be recharged.

Primary cells can not be recharged.

When the terminals of a cell are shorted potential difference across the terminals is zero or short circuited?

Derive the potential difference across the terminals of a cell when current is being drawn from it.

 The energy conversion happening during charging of a battery is :

Assertion: When a battery is short-circuited, the terminal voltage is zero.
Reason: In the situation of a short-circuit, the current is zero
 

The terminal potential difference of a cell when short-circuited is (E=EMF of the cell)

A cell that can be recharged several times is called _____.

The potential difference $\left(V\right)$ across the terminals of a battery which is getting charged is always:

The terminal potential difference $\left(V\right)$ of a battery of emf $\left(E\right)$ and internal resistance $\left(r\right)$ which is getting charged with electric current $\left(I\right)$ flowing through it is:

A cell that can be recharged several times is called _____.

Which cell can be recharged?

A cell of emf $\epsilon$ and internal resistance $\left(r\right)$ is connected in series with an external resistance $\left(nr\right)$ then the ratio of the terminal potential difference to emf is:

Which one of the following is a characteristic of a primary cell?

What is the potential difference across the terminals of the cell in the given circuit?

A storage battery of emf $8.0 \mathrm{V}$ with internal resistance $0.5\mathrm{\Omega }$ is being charged by a $120 \mathrm{V} \mathrm{D}\mathrm{C}$ supply using a series resistor of $15.5\mathrm{\Omega }.$ What is the terminal voltage of the battery during charging?

Assertion: In a simple battery circuit, the point at the lowest potential is the positive terminal of the battery.

Reason: The current flows towards the point of the lowest potential, as it does in such a circuit from the negative to the positive terminal.

Assertion: In a simple battery circuit the point at the lowest potential is positive terminal of the battery.

Reason: The current flows towards the point of the lowest potential, as it does in such a circuit from negative to the positive terminal.