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3 years ago

A circuit is built based on this circuit diagram. What is the equivalent resistance of the circuit?

Physics

2 answers:

Lana71 [14]3 years ago

8 0

All of the resistances are parallel so the total resistance is:
1/Rt = 1/9 + 1/6 + 1/3 the final answer’s 1.636 (B)

zalisa [80]3 years ago

6 0

Answer:

Equivalent resistance of this circuit is 1.6 ohms.

Explanation:

In the given figure, the three resistors are connected in parallel with 12 Volt battery. In parallel combination of resistors, the potential difference across each resistor is same but the current across each resistors divides.

The equivalent resistance is given by :

$\dfrac{1}{R_p}=\dfrac{1}{R_1}+\dfrac{1}{R_2}+\dfrac{1}{R_3}$

Here, R₁ = 3 ohms, R₂ = 6 ohms and R₃ = 9 ohms

$\dfrac{1}{R_p}=\dfrac{1}{3}+\dfrac{1}{6}+\dfrac{1}{9}$

$R_p=1.6\ \Omega$

Hence, the equivalent resistance of this circuit is 1.6 ohms.

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Calculate the p.e. of a 5 kg mass when it is (i) 3 m, (ii) 6 m, above the ground. (g = 10 N/kg)

Mashcka [7]

Explanation:

P.E=MGH

(1) P.E=5×10(G)×3

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Hope it helps, just remember the formula u can solve any question regarding gravition of earth (P.E=Mgh)

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3 years ago

A train moving at 5 m/sec passed a track gang and then accelerated uniformly a rate of 1.2 m/sec/sec for 5 min. How far did the

Amanda [17]

Answer:

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Check: V0 = 5 m/s

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We calculated V2 above at 365 m/s the speed after 300 sec

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3 years ago

Explain Newtons Laws

Vsevolod [243]

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2) Newton second law of motion: states that ‟acceleration to the force acting on the body and inversky proportional to the mass of the body”

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3 years ago

The moon has a smaller mass than the Earth. If

ArbitrLikvidat [17]

Answer:

Decrease

Explanation:

If you were on the Moon, which has significantly less mass than the Earth, your weight would: decrease

The point that seemed to be giving me a complicated time was being able to distinguish the difference and meaning of weight and mass and being able to apply that to a problem. I kept mixing up the definitions. For example in homework 3.1, one question asked:

If you were on the moon, which has significantly less mass than the earth, your mass would:

a. increase

b. decrease

c. stay the same

d. become zero

The definition of mass is the amount of matter in an object. The definition of weight is the amount or unit of force. For me, I just had to remember that when it asked about weight, it wasn’t referring how heavy an object is. After I was able to recognize that when it came to weight, questions became easier.

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3 years ago

Plane polarized light with intensity I0 is incident on a polarizer. What angle should the principle axis make with respenct to t

Nataliya [291]

Answer:

Q = 47.06 degrees

Explanation:

Given:

- The transmitted intensity I = 0.464 I_o

- Incident Intensity I = I_o

Find:

What angle should the principle axis make with respect to the incident polarization

Solution:

- The relation of transmitted Intensity I to to the incident intensity I_o on a plane paper with its principle axis is given by:

I = I_o * cos^2 (Q)

- Where Q is the angle between the Incident polarized Light and its angle with the principle axis. Hence, Using the relation given above:

Q = cos ^-1 (sqrt (I / I_o))

- Plug the values in:

Q = cos^-1 ( sqrt (0.464))

Q = cos^-1 (0.6811754546)

Q = 47.06 degrees

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4 years ago