Finding the terminal voltage across 16V and 8V batteries?

AI Thread Summary
To find the terminal voltage across a 16V and an 8V battery, the total current in the circuit is calculated to be 5A. The initial approach involved subtracting the voltage drop due to internal resistance and other resistors from the battery voltage, which was incorrect. Participants in the discussion suggest providing a circuit diagram for better clarity and to assist in evaluating the logic and calculations. Further guidance is requested to resolve the confusion regarding the terminal voltage calculations. Accurate assessment of the circuit is essential for determining the correct terminal voltages.
fishy
Messages
2
Reaction score
0

Homework Statement



Find the terminal voltage across the 16-V battery and 8-V battery.

Homework Equations



V=IR

The Attempt at a Solution



I calculated the total current of the circuit to be 5-A, but after that I'm stuck. What I did (and it was wrong) was simply use the voltage of the battery and subtracted the voltage produced by internal resistance as well as the other resistors.

Any guidance would be much appreciated.
 
Physics news on Phys.org
Hi fishy, Welcome to Physics Forums.

fishy said:

Homework Statement



Find the terminal voltage across the 16-V battery and 8-V battery.

Homework Equations



V=IR

The Attempt at a Solution



I calculated the total current of the circuit to be 5-A, but after that I'm stuck. What I did (and it was wrong) was simply use the voltage of the battery and subtracted the voltage produced by internal resistance as well as the other resistors.

Any guidance would be much appreciated.

Can you provide a circuit diagram? It's hard to judge your logic and conclusions without seeing the actual problem.
 
Thread 'Collision of a bullet on a rod-string system: query'

Thread 'Collision of a bullet on a rod-string system: query'

In this question, I have a question. I am NOT trying to solve it, but it is just a conceptual question. Consider the point on the rod, which connects the string and the rod. My question: just before and after the collision, is ANGULAR momentum CONSERVED about this point? Lets call the point which connects the string and rod as P. Why am I asking this? : it is clear from the scenario that the point of concern, which connects the string and the rod, moves in a circular path due to the string...
View full post »
Thread 'A cylinder connected to a hanged mass'

Thread 'A cylinder connected to a hanged mass'

Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
View full post »

Similar threads

Connecting a number of EMF sources in a circle to form a circuit
Replies
9
Views
1K
Why is source force + electrostatic force = 0 inside battery?
Replies
10
Views
1K
Circuit with potential difference across battery being zero?
Replies
3
Views
1K
Mechanisms Involved When Charging a Battery
Replies
10
Views
1K
Ohm's Law - Finding Source Voltage
Replies
3
Views
1K
Why do the headlights on the car become dim when the car is starting?
Replies
4
Views
2K
I''What is the optimal resistance for maximizing battery terminal voltage?
Replies
2
Views
1K
What is the voltage across battery terminals?
Replies
1
Views
2K
Calculating the voltage across capacitors and resistors with switches
Replies
2
Views
718
Finding the internal resistance of battery
Replies
10
Views
3K

Hot Threads

Recent Insights

Back
Top