Physics, 26.01.2021 21:50 LilCookies1

You are asked to verify the statement “for a constant current, there is a direct relationship between voltage and resistance”. Which of the following calculations could you perform to complete this task?

A
An initial voltage of 25.0 V creates a current of 1.25 A. The voltage is decreased to 12.5 V to create a current of 0.625 A.
B
An initial resistance of 30 Ω allows a current of 1.25 A to flow. When the resistance is doubled, the current is 0.625 A.
C
An initial current of 2.6 A is created when 62.5 V occurs. The current is then doubled to 5.2 A and the voltage doubles to 125 V.
D
An initial resistance of 50 Ω allows a current of 2.6 A. When the resistance is doubled, the current is 2.6 A.

Answers: 2

Show answers

Another question on Physics

Physics, 21.06.2019 20:40

In a vernier instrument the main scale is in 1/2 mm divisions .vernier is made by redividing 19 such divisions into 20 equal parts. calculate the least count of the instrument.

Answers: 3

Answer

Physics, 22.06.2019 04:00

Ametal ball with a mass of 0.028 kg is dropped from rest at a height of 1.0 meters above the ground. assuming the energy in the ball is conserved, how much kinetic energy will the ball have when it is 0.5 meters above the ground?

Answers: 1

Answer

Physics, 22.06.2019 18:30

Blood pressure the total amount of blood the heart pumps in one minute 2. cardiac output the number of times your heart beats in a minute 3. dilate the amount of blood that the heart can pump in a single beat 4. heart rate the force exerted on the walls of the blood vessels by the blood that moves through them 5. stroke volume to widen or get larger in size

Answers: 3

Answer

Physics, 22.06.2019 19:30

A47.2 g block of copper whose temperature is 480 k is placed in an insulating box with a 91.8 g block of lead whose temperature is 200 k. (a) what is the equilibrium temperature of the two-block system? (b) what is the change in the internal energy of the two-block system between the initial state and the equilibrium state? (c) what is the change in the entropy of the two-block system? the heat capacities of copper and lead are 386 j/kg·k and 128 j/kg·k, respectively.

Answers: 1

Answer

You know the right answer?

You are asked to verify the statement “for a constant current, there is a direct relationship betwee...

Questions