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IceJOKER [234]
3 years ago
7

How are the current and resistance related when the voltage of a circuit is constant

Physics
2 answers:
tankabanditka [31]3 years ago
3 0

The law of Ohm defines the relationship in an electrical circuit between voltage, current and resistance: I = v / r. The current is directly proportional to the voltage and the resistance is inversely proportional.

vekshin13 years ago
3 0

Answer:

I  ∝  \frac{1}{R} ,  current is inversely proportional resistance.

Explanation:

According to ohm's law :Voltage is directly proportional to the current

V ∝ I

V = IR.

We can write it as \frac{V}{R} = I

We can say current is inversely proportional to resistance .

I  ∝  \frac{1}{R}

Where , V = constant

Therefore, If voltage is constant current is inversely proportional resistance.

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Thw question is not complete. The complete question is;

Charge of uniform linear density (6.7 nCim) is distributed along the entire x axis. Determine the magnitude of the electric field on the y axis at y = 1.6 m. a. 32 N/C b. 150 NC c 75 N/C d. 49 N/C e. 63 NC

Answer:

Option C: E = 75 N/C

Explanation:

We are given;

Uniform linear density; λ = 6.7 nC/m = 6.7 × 10^(-9) C/m

Distance on the y-axis; d = 1.6 m

Now, the formula for electric field with uniform linear density is given as;

E = λ/(2•π•r•ε_o)

Where;

E is electric field

λ is uniform linear density = 6.7 × 10^(-9) C/m

r is distance = 1.6m

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Thus;

E = (6.7 × 10^(-9))/(2π × 1.6 × 8.85 × 10^(-12))

E = 75.31 N/C ≈ 75 N/C

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3 years ago
A train travels 600 km in 4 hours. What is the speed of the train?
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