subject
Physics, 30.07.2021 02:40 mmcdaniels46867

In order to measure the properties of a battery, several resistors are connected to the battery in series and the terminal voltage is measured. In the first case, the resistor has resistance R1 = 3.5 Ω and the terminal voltage is ΔV1 = 2.9 V. In the second case, the resistor has resistance R2 = 77 Ω and the terminal voltage ΔV2 = 7.5 V. Required:
Find the numerical value of r in Ω.

ansver
Answers: 1

Another question on Physics

question
Physics, 22.06.2019 04:30
Afeather of mass 0.001 kg falls from a height of 2 m. under realistic conditions, it experiences air resistance. based on what you know about friction, what can you say about the kinetic energy of the feather as it reaches the ground? acceleration due to gravity is g = 9.8 m/s2. a. ke < 0.0196 j b. ke = 00196 j c. je = 0 j d. ke > 0.0196 j
Answers: 1
question
Physics, 22.06.2019 07:50
Imagine you are standing in the antarctic during the southern hemisphere summer. the sky is clear and blue. there are no clouds in the sky. your shadow is cast on the icy ground. what is the color of the shadow?
Answers: 1
question
Physics, 22.06.2019 09:00
The material that keeps its new shape after it is stretched is called?
Answers: 1
question
Physics, 22.06.2019 11:20
Suppose a diode consists of a cylindrical cathode with a radius of 6.200×10^−2 cm , mounted coaxially within a cylindrical anode with a radius of 0.5580 cm . the potential difference between the anode and cathode is 260 v . an electron leaves the surface of the cathode with zero initial speed (v initial=0). find its speed vfinal when it strikes the anode.
Answers: 1
You know the right answer?
In order to measure the properties of a battery, several resistors are connected to the battery in s...
Questions
question
Mathematics, 18.11.2020 18:30
question
English, 18.11.2020 18:30
question
Chemistry, 18.11.2020 18:30
question
Mathematics, 18.11.2020 18:30
question
Mathematics, 18.11.2020 18:30
question
Mathematics, 18.11.2020 18:30