In parallel grouping, all anodes are connected at one point and all cathode are connected together at other points. Therefore when cells are connected in parallel, the voltage remains the same, and internal resistance decreases, hence the current increases. Therefore option 3 is correct.
When cells are connected in parallel then the emf?
(ii) The effective e.m.f. of the cells of equal e.m.f. in parallel will be equal to e.m.f. of one cell.
When the cells are connected in parallel then the current?
When the cells are connected in parallel then the current and the e.m.f increases . So here option 2 and option 3 are correct .
What happens when cells are connected in series and parallel?
In a series combination, there is only a single path between the terminals of the cell. The positive terminal of the cell is connected to the negative terminal of the other cell in a series combination. Parallel combination circuits have multiple paths between the terminals.
When cells are arranged in parallel the current capacity?
when it arrange in paralllel the internal resistance is Decrease and the current become increase so current capacity increase .
When cells are connected in series then the current?
Series connection
In series, cells are joined end to end so that the same amount of current flows through each cell in the circuit. A set of batteries are said to be connected in series when the positive terminal of one cell is connected to the negative terminal of the succeeding cell.
When two cells are connected in parallel it should ensure that have?
same emf
When batteries are connected in parallel it must be ensured that they have the same emf to avoid short circuits and to avoid any circulating current between batteries.
What happens when cells are connected in series?
Cells in Series Connection
In series, cells are joined end to end so that the same current flows through each cell. In case if the cells are connected in series the emf of the battery is connected to the sum of the emf of the individual cells.
When the cells are connected in parallel then Mcq?
When cells are connected in parallel, the total voltages that they provide does not change. For example, when two or more 2 V cells are connected in parallel, they still provide a total voltage of 2 V.
When multiple series connected cells are connected in parallel?
Series and Parallel Connections
Cells can be connected both in series, parallel or a combination of both. In series circuit electrons travel only in one path. Here the current will be the same which passes through each resistor. The voltage across resistors in a series connection will be different.
When two battery are connected in parallel it should be the battery?
When connecting batteries in parallel the negative terminal of one battery is connected to the negative terminal of the next and so on through the string of batteries, the same is done with positive terminals, ie positive terminal of one battery to the positive terminal of the next.
Why battery cells are connected in series?
Batteries achieve the desired operating voltage by connecting several cells in series; each cell adds its voltage potential to derive at the total terminal voltage. Parallel connection attains higher capacity by adding up the total ampere-hour (Ah).
Which electrolyte is used in lead-acid cell?
sulfuric acid
The electrolyte used in the lead-acid battery is sulfuric acid because it dissociates into two ions hydrogen ion (2${{H}^{+}}$) and sulfate ion ($SO_{4}^{2- }$), and both the electrodes are dipped in this solution.
When cells are connected in series then the emf?
When two or more cells are connected in series in a circuit, the total potential difference is the sum of their potential differences. Hence, the cells are connected in series in order to produce a larger total emf.
Which primary cell has highest voltage?
The simple voltage cell is called a primary cell. A primary cell supplied current until the electrolyte is exhausted or the negative electrode is completely dissolved.
Detailed Solution.
| Type | Voltage (V) | Remark |
|---|---|---|
| Zinc-Chloride | 1.5 | Similar to Carbon-zinc cells but it has a high current capacity |
What happen when battery charging rate is too high?
2. Excessive Charging Rate, or Overcharging. If a battery is charged at too high a rate, only part of the current is used to produce the chemical actions by which the battery is charged. The balance of the current decomposes the water of the electrolyte into hydrogen and oxygen, causing gassing.
Which battery is generally used in electric power station?
Lead-acid batteries
Lead-acid batteries are the storage battery used in an electric power station.
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