Physics : asked on kuehlthau03
 02.08.2022

Masako measures a circuit at 12 v and 2
a. using ohm's law, what can he calculate for the circuit? resistance () resistance (o) current (i) current ()

. 10

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17.02.2022, solved by verified expert
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I just took the test and this was the only question I got WRONG. Answer is A. resistance (ohm symbol)
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43 students found this answer . helpful

The resistance is 6 ohm.

(a) is correct option.

Explanation:

Given that,

Voltage = 12 V

Current = 2 A

Ohm's law :

The voltage is equal to the multiplication of the current and resistance.

We need to calculate the resistance

Using formula of ohm's law

Masako measures a circuit at 12 v and 2 a. using, №15222026, 02.08.2022 21:59

Masako measures a circuit at 12 v and 2 a. using, №15222026, 02.08.2022 21:59

Put the value into the formula

Masako measures a circuit at 12 v and 2 a. using, №15222026, 02.08.2022 21:59

Masako measures a circuit at 12 v and 2 a. using, №15222026, 02.08.2022 21:59

Hence, The resistance is 6 ohm.

It is was helpful?

Faq

Physics
Step-by-step answer
P Answered by Specialist
He can calculate the Power (24 watts) and Resistance (6 ohms)
Physics
Step-by-step answer
P Answered by Master
He can calculate the Power (24 watts) and Resistance (6 ohms)
English
Step-by-step answer
P Answered by Master

1. Is B. 1.5 to 2.2


2. Is A. High-speed CAN


3. Is B. Energy Storage device


4. Is C. Allow reverse current to flow


5. Is B. Transistor


7. Is C. Farad


11. Is D. 0 and 7V


12. Is C. Both A and B


13. Is A. The wire is connected between two grounds


14. Is D. A lower current circuit controls a higher current circuit


15 is B. Powertrain control module


The others I don't know good luck

English
Step-by-step answer
P Answered by Specialist

1. Is B. 1.5 to 2.2


2. Is A. High-speed CAN


3. Is B. Energy Storage device


4. Is C. Allow reverse current to flow


5. Is B. Transistor


7. Is C. Farad


11. Is D. 0 and 7V


12. Is C. Both A and B


13. Is A. The wire is connected between two grounds


14. Is D. A lower current circuit controls a higher current circuit


15 is B. Powertrain control module


The others I don't know good luck

Physics
Step-by-step answer
P Answered by Specialist

Measurements/cor. units      Resistor 1    Resistor 2    Resistor 3      Total

V (volts)                                       24V              16V            12.63V        120 V

I (A – amperes)                          4.8A             2.13A          1.34A          5.45A

R (Ω – ohms)                            5.0 Ω            7.5 Ω           9.5 Ω            22Ω

P (W – work)                            115.2W          34.08W      16.92W        2,640W

Physics
Step-by-step answer
P Answered by Specialist

Measurements/cor. units      Resistor 1    Resistor 2    Resistor 3      Total

V (volts)                                       24V              16V            12.63V        120 V

I (A – amperes)                          4.8A             2.13A          1.34A          5.45A

R (Ω – ohms)                            5.0 Ω            7.5 Ω           9.5 Ω            22Ω

P (W – work)                            115.2W          34.08W      16.92W        2,640W

Physics
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P Answered by Specialist
Options:
a. a lower frequency and a shorter wavelength.
b. a higher frequency and a longer wavelength.
c. a lower frequency and a longer wavelength.
d. a higher frequency and a shorter wavelength

Answer:
d. a higher frequency and a shorter wavelength

Explanation:
The frequency of a wave is inversely proportional to its wavelength. That means that waves with a high frequency have a short wavelength, while waves with a low frequency have a longer wavelength. Light waves have very, very short wavelengths.
For example, Gamma rays have the highest energies, the shortest wavelengths, and the highest frequencies. Radio waves, on the other hand, have the lowest energies, longest wavelengths, and lowest frequencies of any type of EM radiation.
Options:
a. a lower frequency and a shorter wavelength.
b. a higher frequency and a longer wavelen
Physics
Step-by-step answer
P Answered by Specialist
Answer: Option B and C are True.

Explanation:
The weight of the two blocks acts downwards.
Let the weight of the two blocks be W. Solving for T₁ and T₂:
w = T₁/cos 60° -----(1);
w = T₂/cos 30° ----(2);
equating (1) and (2)
T₁/cos 60° = T₂/cos 30°;
T₁ cos 30° = T₂ cos 60°;
T₂/T₁ = cos 30°/cos 60°;
T₂/T₁ =1.73.
Therefore, option a is false since T₂ > T₁.
Option B is true since T₁ cos 30° = T₂ cos 60°.
Option C is true because the T₃ is due to the weight of the two blocks while T₄ is only due to one block.
Option D is wrong because T₁ + T₂ > T₃ by simple summation of the two forces, except by vector addition.
Answer: Option B and C are True.

Explanation:  
The weight of the two blocks acts downwards.
Le

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