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amm1812
2 years ago
10

Three identical resistors are connected in parallel to a battery. If the current of 12. A flows from the battery, how much curre

nt flows through any one of the resistors
Physics
1 answer:
Doss [256]2 years ago
7 0

Answer:

4 A

Explanation:

We are given that

R_1=R_2=R_3=4\Omega

I=12 A

We have to find the current flowing through each resistor.

We know that in parallel combination current flowing through different resistors are different and potential difference across each resistor is same.

Formula :

\frac{1}{R}=\frac{1}{R_1}+\frac{1}{R_2}+\frac{1}{R_3}

Using the formula

\frac{1}{R}=\frac{1}{4}+\frac{1}{4}+\frac{1}{4}=\frac{3}{4}

R=\frac{4}{3}\Omega

V=IR

Substitute the values

V=12\times \frac{4}{3}=16 V

I_1=\frac{V}{R_1}=\frac{16}{4}=4 A

I_1=I_2=I_3=4 A

Hence, current flows through any one of the resistors is 4 A.

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How do the properties of an electromagnetic wave change as a result of increasing the period of the wave?
astra-53 [7]

Answer:

as the period decreases, the frequency and energy of the wave increase

Explanation:

Electromagnetic waves are oscillations of the electric and magnetic fields, described by maxwell's equations, the speed of the wave is called the speed of light

            c = λ f

            E = E cos (kx - wt)

Angular velocity is related to frequency and period.

           w = 2π f = 2π / T

Let's analyze what happens when the wave period decreases, angular velocity and frequency increase.

This increase in frequency is reflected with the Planck equation in wave energy

                E = h f

Therefore the wave carries more energy and can lead to stronger interactions with matter.

In summary, as the period decreases, the frequency and energy of the wave increase

4 0
3 years ago
How long can a flashlight run for if it draws 0.11 amps and its battery contains 10 coulombs of change?
Alex17521 [72]

Answer:

Battery will run for t = 90 s

Explanation:

As we know that rate of flow of charge is known as electric current

So we will have

i = \frac{Q}{t}

i = 0.11 A

Q = 10 C

now we have

t = \frac{Q}{i}

t = \frac{10}{0.11}

t = 90 s

8 0
3 years ago
A skier accelerates to a speed of 56 m/s over a distance of 151 m. Determine the acceleration (assume uniform) of the skier.
creativ13 [48]

The acceleration of the skier over the distance traveled is 10.38 m/s²

The given parameters;

  • Initial velocity of the skier, u = 56 m/s
  • Distance covered by the skier, s = 151 m

Acceleration is defined as the change in velocity per change in time of motion.

The magnitude of the acceleration of the skier is calculated as follows;

v^2 =u^2 - 2as\\\\

where;

<em>v is the final velocity at the end of 151 m = 0</em>

0 = 56^2 -(2\times 151)a\\\\302a = 3136\\\\a = \frac{3136}{302} \\\\a = 10.38 \ m/s^2

Thus, the acceleration of the skier over the distance traveled is 10.38 m/s²

Learn more here:brainly.com/question/20453233

7 0
1 year ago
ANSWER PLEASEEE AS FAST AS POSSIBLE !!
shusha [124]

Answer:

V=IR

Explanation:

12=(I)*3

I=4A

4 0
3 years ago
Read 2 more answers
A 29.0-kg child on a 3.00-m-long swing is released from rest when the ropes of the swing make an angle of 25.0° with the vertica
KiRa [710]

Answer:

v = 2.348 m/s

Explanation:

Let:

h be the height of the child above the swing's low point,

v be the speed at the low point.

When the ropes make angle 3

25 deg. with the vertical:

h = 3.00(1 - cos(25)).

Equating potential energy at the high point to kinetic energy at the low point:

29.0 * 9.81 * 3.00(1 - cos(25)) = 29.0v^2 / 2

79.96 =29.0v^2 / 2

v = 2.348 m/s

6 0
2 years ago
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