Can you solve a series circuit problem with 3 resistors and a 24V battery?

AI Thread Summary
A circuit with three resistors in series connected to a 24V battery has a current of 32.0 mA. Two resistors are 250.0 Ω and 150.0 Ω, leading to the calculation of the third resistor as 350 Ω. To find the voltage drop across each resistor, Ohm's Law (V = I × R) is applied, using the known current and resistance values. The total voltage across all resistors must equal the battery voltage of 24V. Understanding these calculations clarifies how to determine the voltage drop for each resistor in the circuit.
camel-man
Messages
76
Reaction score
0
1.A circuit consists of 3 resistors connected in series to a 24.0 V battery. The current in the circuit is 32.0 mA. If 2 of the resistors are 250.0  and 150.0 ,

find the value of the third resistor.

find the potential difference across each resistor.

2. R=V/I3. I calculated the third resistor to be 350 ohms

I am confused on what this means "find the potential difference across each resistor."

What equation do I use for this?
 
Last edited by a moderator:
Physics news on Phys.org
You know the current through each resistor and you know the resistance for each.
You need the voltage. What equation would you use?
 
Use the term "voltage drop" instead of potential difference, and you'll have the answer. :)
 
nasu said:
You know the current through each resistor and you know the resistance for each.
You need the voltage. What equation would you use?

Isn't the voltage given though at 24 v?
 
camel-man said:
Isn't the voltage given though at 24 v?
Yes, so when you sum the three resistor voltages the result must equal 24V. Determine the separate resistor voltages. Apply Ohm's Law.
 
Kindly see the attached pdf. My attempt to solve it, is in it. I'm wondering if my solution is right. My idea is this: At any point of time, the ball may be assumed to be at an incline which is at an angle of θ(kindly see both the pics in the pdf file). The value of θ will continuously change and so will the value of friction. I'm not able to figure out, why my solution is wrong, if it is wrong .
TL;DR Summary: I came across this question from a Sri Lankan A-level textbook. Question - An ice cube with a length of 10 cm is immersed in water at 0 °C. An observer observes the ice cube from the water, and it seems to be 7.75 cm long. If the refractive index of water is 4/3, find the height of the ice cube immersed in the water. I could not understand how the apparent height of the ice cube in the water depends on the height of the ice cube immersed in the water. Does anyone have an...
Thread 'Correct statement about a reservoir with outlet pipe'
The answer to this question is statements (ii) and (iv) are correct. (i) This is FALSE because the speed of water in the tap is greater than speed at the water surface (ii) I don't even understand this statement. What does the "seal" part have to do with water flowing out? Won't the water still flow out through the tap until the tank is empty whether the reservoir is sealed or not? (iii) In my opinion, this statement would be correct. Increasing the gravitational potential energy of the...
Back
Top