1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Volgvan
3 years ago
12

Two identical batteries, each with an emf of 18 V and an internal resistance of 1 :, are wired in parallel by connecting their p

ositive terminals together and connecting their negative terminals together. The combination is then wired across a 4-: resistor. The current in the 4-: resistor is:
Physics
1 answer:
bulgar [2K]3 years ago
8 0

Answer:

I = 4 A

Explanation:

When the batteries are connected in parallel, the voltage is the same as the voltage of each battery, but the internal resistance is less, in general we can assume that the internal resistance is also in parallel.

            1 / r_{eq} = 1 / r₁ + 1 / r₂ = 2 / r = 2/1

           r_{eq} = 0.5 ohm

The current in the resistor is

      V = I R + I r_{eq}

       I = V / R + r_{eq}

       I = 18 / (4 +0.5)

       I = 4 A

You might be interested in
How does nuclear fusion produce energy
prisoha [69]
The fusion reaction that is easiest to accomplish is the reaction between two hydrogen isotopes: deuterium, extracted from water and tritium, produced during the fusion reaction through contact with lithium. When deuterium and tritium nuclei fuse, they form a helium nucleus, a neutron and a lot of energy.
6 0
3 years ago
Help me please !!!!!
bezimeni [28]

Answer:

confounding cause they had exposure to many programmes

8 0
3 years ago
Read 2 more answers
In the periodic table, the properties repeat in what direction?​
pogonyaev

Answer:

Left to right and top to bottom

Explanation:

On the periodic table, the properties repeat from left to right and from top to bottom.

Periodic properties have a pattern from the top to the bottom or down a group or family.

Also, across the period from left to right, they also show a repeating pattern.

  1. Certain properties increase from left to right and decreases from top to bottom. E.g. electronegativity.
  2. Also, some properties decreases from left to right and increases from top to bottom e.g. atomic radius.
7 0
3 years ago
After driving a portion of the route, the taptap is fully loaded with a total of 26 people including the driver, with an average
Svet_ta [14]

Answer:

0.44807175m

Explanation:

k = Spring constant = 4\times 10^{4}\ N/m (Assumed, as it is not given)

g = Acceleration due to gravity = 9.81 m/s²

Total mass is

m=26\times 67+3\times 15+5\times 3+25\\\Rightarrow m=1827\ kg

The total weight will balance the spring force

mg=kx\\\Rightarrow x=\dfrac{mg}{k}\\\Rightarrow x=\dfrac{1827\times 9.81}{4\times 10^{4}}\\\Rightarrow x=0.44807175\ m

The springs are compressed by 0.44807175m

5 0
3 years ago
Inertia is the property of an object that describes:
8_murik_8 [283]
Inertia is the property of an object that basically describes its resistance to change its state of motion.

For instance, if an object is still, inertia describes the "attitude" of the object to stay still (a force should be applied in order to move it). Similarly, if an object is moving by uniform motion (with constant speed), inertia refers to the "attitude" of the object to keep its uniform motion (again, a force should be applied to the object in order to change this state of motion).
8 0
3 years ago
Other questions:
  • Suppose you want to operate an ideal refrigerator with a cold temperature of -10.0ºC , and you would like it to have a coefficie
    7·1 answer
  • HELP THIS IS LATE How does the size and temperature of the Sun compare to other stars in the Milky Way galaxy?
    13·1 answer
  • ou are unloading a refrigerator from a delivery van. The ramp on the van is 5.0 m long, and its top end is 1.4 m above the groun
    9·1 answer
  • If we have two objects with the same mass but different densities (Lets assume object 1 is denser,therefore volume is lower rela
    12·1 answer
  • On a cold winters da,y,If you left a drink setting outside,it could freeze.Explain why in a complete sentence
    10·1 answer
  • A frog has a pulmocutaneous artery and vein which compares to the human pulmonary artery and vein. What two organs do these bloo
    11·1 answer
  • Which element accumulates in the environment due to the use of
    10·1 answer
  • What is the force the when does when Gravity pushes you​
    5·2 answers
  • This is an image of a satellite traveling around Earth. Explain what are the two forces that are keeping the satelite around Ear
    9·1 answer
  • What does red shift tell about the movement of a galaxy?​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!