Register
Find the resistance of a fixed resistor in a circuit when the Ammeter reads 4 A and the p.d across the resistor is 12 V
227k views
1 vote
Find the resistance of a fixed resistor in a circuit when the Ammeter reads 4 A and the p.d across the resistor is 12 V

User UGuntupalli
by
3.3k points

2 Answers

1 vote
So formula again V= IR
Potential difference = 12V
Current = 4 A
Resistance = V/I
= 12/4
= 3 ohms
User Manoj Attal
by
3.9k points
2 votes

Answer:

3 ohms

Step-by-step explanation:

R = V/I

R = 12 ÷ 4

R = 3 ohms

User Mahdad
by
3.8k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

3.6m questions

4.6m answers

Other Questions

How does the value of the electrostatic force vary with the value (how many) of the charges?
What is the application of physics ​
A car is moving 14.4 m/s when it hits the brakes. It slow from 78.8 m, which take 9.92s. It then accelerates at 1.83 m/s 2 for 4.50 s. What is the total displacement?
A charge Q is uniformly spread over one surface of a very large nonconducting square elastic sheet having sides of length d. At a point P that is 1.25 cm outside the sheet, the magnitude of the electric
If you use 750 Newtons of force to accelerate an object to 3.1 m/s​ . What is the object’s mass?
Link Copied!