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
PtichkaEL [24]
2 years ago
12

Please help me with this question​

Physics
1 answer:
Alexandra [31]2 years ago
5 0

Answer:

(4) A = 3 A, A₂ = 11 A

(5) 7 A

Explanation:

(4)

From the diagram,

A = 3+6+2

A = 11 A

V = A₂R

A₂ = V/R₂............ Equation 1

Given: V = 12 V,  R₂ = 4 Ω

Substitute these values into equation 1

A₂ = 12/4

A₂ = 3 A

(5) Applying,

V = IR'

I = V/R'............ Equation 1

Where V = Voltage, I = cuurent, R' = total resistance.

But,

1/R' = (1/3)+(1/4)

1/R' = (3+4)/12

1/R' = 7/12

R' = 12/7 Ω

Given: V = 12 V

Substitute these values into equation 1

I = 12/(12/7)

I = 7 A

Therefore

A = 7 A

You might be interested in
The conservation laws, show ift<br>te-te​
FinnZ [79.3K]

Answer:

Explanation:

In physics, a conservation law states that a particular measurable property of an isolated physical system does not change as the system evolves over time. The exact conservation laws include conservation of energy, and conservation of linear momentum, and also conservation of angular momentum, aswell as the conservation of electric charge

7 0
3 years ago
Would standing at the top of a slide be kinetic or potential?
sergeinik [125]
It would be potiental because your not moving
5 0
2 years ago
Read 2 more answers
HELP ASAP!<br> Everything on screenshot!
Oksana_A [137]
This is a divergent plate boundary because the two tectonic plates are colliding together.
3 0
3 years ago
A double slit that is illuminated with coherent light of wavelength 644 nm produces a pattern of bright and dark fringes on a sc
shutvik [7]

Answer:

2.77 cm

Explanation:

d = separation between the slits = 2783 x 10⁻⁹ m

\lambda = wavelength of coherent light = 644 nm = 644 x 10⁻⁹ m

D = Distance of the screen = 6 cm = 0.06 m

y_{n} = Position of nth bright fringe

Position of nth bright fringe is given as

y_{n} = \frac{nD\lambda }{d}  

for n = 2

y_{2} = \frac{nD\lambda }{d}  

y_{2} = \frac{(2)(0.06)(644\times10^{-9}))}{2783\times10^{-9}}

y_{2} = 0.0278 m

for n = 4

y_{4} = \frac{nD\lambda }{d}  

y_{4} = \frac{(4)(0.06)(644\times10^{-9}))}{2783\times10^{-9}}

y_{4} = 0.0555 m

Distance between 4th and 2nd bright fringes is given as

w = y_{4} - y_{2} = 0.0555 - 0.0278 = 0.0277 m

w = 2.77 cm

8 0
2 years ago
According to the first law of thermodynamics what could happen when heat is added to a system
tekilochka [14]

temperature rises ? specific heat capacity etc ...

3 0
2 years ago
Read 2 more answers
Other questions:
  • Humans first appeared during the _____.
    8·2 answers
  • Penny has two dogs: Fluffy (left) and Butch (right).
    11·2 answers
  • a train travels 81 kilometers in 2 hours and then 88 kilometers in 2 hours what is its average speed​
    5·1 answer
  • A 1,500-kg car accelerates along a flat track to a speed of 20 m/s. how much does it's gravitational potential energy increases
    11·1 answer
  • You need to design a photodetector that can respond to the entire range of visible light. True or False
    12·1 answer
  • Someone please help​
    7·1 answer
  • How do i write newton's second law for parallel directions
    11·1 answer
  • What can i yeet baby or toddler
    13·1 answer
  • A tennis ball is thrown into
    7·1 answer
  • One component of a magnetic has a magnitude of 0.045T and points along the +r axis, while the other component has a magnitude of
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!