# A lead acid battery with 12 cells connected in series (no-load voltage=2.1 volts per cell) furnishes 10 amperes to a load of 2-ohms resistance. The internal resistance of the battery in this instance is?

1 answer

###### Question:

A lead acid battery with 12 cells connected in series (no-load voltage=2.1 volts per cell) furnishes 10 amperes to a load of 2-ohms resistance. The internal resistance of the battery in this instance is?

## Answers

Answer:[tex]r = 0.043 ohm[/tex]Explanation:As we know that total potential of all cells when they are in series is given as[tex]V = V_1 + V_2 + V_3 + ....................[/tex]so we have[tex]V_{net} = 12(2.1) = 25.2 Volts[/tex]now total resistance of all 12 cells which are in series is given as[tex]r_{net} = 12 r[/tex]external resistance is given as[tex]R = 2 ohm[/tex]now by Ohm's law we know that[tex]V_{net} = i (R + r_{net})[/tex]so we have[tex]25.2 = 10 (2 + 12 r)[/tex][tex]r = 0.043 ohm[/tex]

#### Similar Solved Questions

1 answer

### Solve each equation with a variable 7X -14+ 2X equals negative 2X +3

Solve each equation with a variable 7X -14+ 2X equals negative 2X +3...

1 answer

### There are 100 Skittles. 94 are blue and 6 are red. If you take 5 Skittles, what’s the chance one will be red? What’s the chance all 5 will be red?

There are 100 Skittles. 94 are blue and 6 are red. If you take 5 Skittles, what’s the chance one will be red? What’s the chance all 5 will be red?...

1 answer

### Consultar los tipos de biotecnología según sus aplicaciones. Dar ejemplos

Consultar los tipos de biotecnología según sus aplicaciones. Dar ejemplos...

1 answer

### A spacecraft travels at a speed of 5 x 10^4 miles per day. How long will it travel in 1.5 x 10^2 days?

A spacecraft travels at a speed of 5 x 10^4 miles per day. How long will it travel in 1.5 x 10^2 days?...

1 answer

### How do you distinguish between multiples and factors of a number, and justify your evaluation of the LCM & GCF of a set of numbers? please help!! can you give me 3+ sentences?? please help asap, due tomorrow!!!!

how do you distinguish between multiples and factors of a number, and justify your evaluation of the LCM & GCF of a set of numbers?
please help!! can you give me 3+ sentences?? please help asap, due tomorrow!!!!...

1 answer

### A plane travels at a speed of 180 mph in still air. flying with a tailwind, the plane is clocked over a distance of 700 miles. flying against a headwind, it takes 2 hours longer to complete the return trip. what was the wind velocity?

a plane travels at a speed of 180 mph in still air. flying with a tailwind, the plane is clocked over a distance of 700 miles. flying against a headwind, it takes 2 hours longer to complete the return trip. what was the wind velocity?...

1 answer

### The constitutional convention of 1974 was divided over which issue?

The constitutional convention of 1974 was divided over which issue?...

2 answers

### Write down any three benefits of fewer languages ?

write down any three benefits of fewer languages ?...

1 answer

### A doctor assigns people to treatment groups based on data from their medical records. Is this method of selecting treatment groups biased or unbiased?

A doctor assigns people to treatment groups based on data from their medical records. Is this method of selecting treatment groups biased or unbiased?...

1 answer

### You start with $40 in your bank account and deposit $18 each week. At the same time, your friend starts with $220 but withdraws $12 each week. When will your account have the same balance PLS ANSWER.... I NEED IT DUE BY TMR

You start with $40 in your bank account and deposit $18 each week. At the same time, your friend starts with $220 but withdraws $12 each week. When will your account have the same balance
PLS ANSWER.... I NEED IT DUE BY TMR...

1 answer

### Can there be a negative change in length? i.e. a negative ΔL ?

Can there be a negative change in length?
i.e. a negative ΔL ?...

2 answers

### Who first used the word cell to describe the basic structure unit of life?

who first used the word cell to describe the basic structure unit of life?...

1 answer

### How many seconds are there until you graduate from high school?

how many seconds are there until you graduate from high school?...