Baterries in parallel and series

  • Thread starter Thread starter jonah.seler
  • Start date Start date
  • Tags Tags
    Parallel Series
AI Thread Summary
When two 12-volt batteries are connected in parallel, the voltage remains at 12 volts, and the total current through a 2-ohm load is 6 amps, with each battery supplying 3 amps. In contrast, when the same batteries are connected in series, the voltage increases to 24 volts, resulting in a total current of 12 amps through the same load. The parallel configuration allows for longer battery life due to increased capacitance, while both configurations can deliver the same current under different conditions. The key distinction is that parallel connections maintain the same voltage, while series connections increase voltage and current. Understanding these differences is crucial for effective battery management in various applications.
jonah.seler
Messages
8
Reaction score
0
Hi.

Lets say I have two batteries{each one has a 12 volts} connected in parallel circuit with a load of 2 ohms.This means,that each battery will force a current of 6A through the circuit and we will have 12 amperes through the circuit.
Is this correct.Does the total amount of amps in the circuit will be 12?

Now what if the battery are connected in series.The the voltage will be 24v ,and with a load of two ohms,the current in the circuit will be 12 amps.So according to this, adding battery in series,increase the current two.The only difference between the two will be in the capacitance.The parallel circuit have two cathodes so it will have more charges, and will last a longer time.Both circuit will have 12 amps, but the parallel will last longer.

I know that I missing something, so if anyone can help... thanks.
 
Physics news on Phys.org
If both batteries are in parallel each one supplies 3A making a total of 6A that flows through the load.
 
The voltage from batteries in parallel is the same. That is, having two 12 volt batteries in parallel only applies 12 volts to the circuit, not 24. So with 2 ohms of resistance you have 6 amps flowing through the circuit, with 3 amps being supplied by each battery.

In series it is the opposite. Two 12 volt batteries in series supply 24 volts to the circuit. So with a load of 2 ohms you have 12 amps flowing through the circuit.
 
Thread 'Gauss' law seems to imply instantaneous electric field propagation'

Thread 'Gauss' law seems to imply instantaneous electric field propagation'

Imagine a charged sphere at the origin connected through an open switch to a vertical grounded wire. We wish to find an expression for the horizontal component of the electric field at a distance ##\mathbf{r}## from the sphere as it discharges. By using the Lorenz gauge condition: $$\nabla \cdot \mathbf{A} + \frac{1}{c^2}\frac{\partial \phi}{\partial t}=0\tag{1}$$ we find the following retarded solutions to the Maxwell equations If we assume that...
View full post »

Thread 'Do electron density waves accompany EM waves in coaxial cables?'

Maxwell’s equations imply the following wave equation for the electric field $$\nabla^2\mathbf{E}-\frac{1}{c^2}\frac{\partial^2\mathbf{E}}{\partial t^2} = \frac{1}{\varepsilon_0}\nabla\rho+\mu_0\frac{\partial\mathbf J}{\partial t}.\tag{1}$$ I wonder if eqn.##(1)## can be split into the following transverse part $$\nabla^2\mathbf{E}_T-\frac{1}{c^2}\frac{\partial^2\mathbf{E}_T}{\partial t^2} = \mu_0\frac{\partial\mathbf{J}_T}{\partial t}\tag{2}$$ and longitudinal part...
View full post »
Thread 'Recovering Hamilton's Equations from Poisson brackets'

Thread 'Recovering Hamilton's Equations from Poisson brackets'

The issue : Let me start by copying and pasting the relevant passage from the text, thanks to modern day methods of computing. The trouble is, in equation (4.79), it completely ignores the partial derivative of ##q_i## with respect to time, i.e. it puts ##\partial q_i/\partial t=0##. But ##q_i## is a dynamical variable of ##t##, or ##q_i(t)##. In the derivation of Hamilton's equations from the Hamiltonian, viz. ##H = p_i \dot q_i-L##, nowhere did we assume that ##\partial q_i/\partial...
View full post »

Similar threads

B Troubleshooting Battery Internal Resistance Measurements
3
Replies
105
Views
10K
How to determine if electrical components are connected in parallel or in series?
Replies
10
Views
958
Solving for Current in Parallel Batteries with Different Voltages
Replies
7
Views
4K
B Why is Parallel Connection of an Ammeter to a Battery Considered Unsafe?
Replies
19
Views
3K
Why Do Capacitors Behave Differently in Series and Parallel Configurations?
Replies
20
Views
2K
Current through an inductor as a function of time
Replies
10
Views
385
Discrepancy in calculating Q Factor using Energy instead of R/wL
Replies
14
Views
2K
Engineering Why is the voltage source high potential into node 1 at -12 V in this op amp problem?
Replies
15
Views
2K
Webpage title: Understanding Series and Parallel Circuits in Circuit Analysis
Replies
5
Views
2K
What does it mean to be ''in series'' or ''in parallel''
Replies
12
Views
8K

Hot Threads

Recent Insights

Back
Top