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3 years ago

8

Solve each problem. Be sure to show your work and give a final answer with units rounded to the given number of significant figu

res.
1) Find the voltage on a circuit with a resistance of 12.5 Ω if it has a current of 2.35 A.

2) If a circuit with a 9.0 V battery has a current of 6.2 A, how much resistance is in the circuit?

3) A circuit has three resistors with values of 4.0 Ω, 8.0 Ω, and 12 Ω. What is the equivalent resistance if they are wired in series?

4) A circuit has three resistors with values of 4.0 Ω, 8.0 Ω, and 12 Ω. What is the equivalent resistance if they are wired in parallel?

1 answer:

Alex Ar [27]3 years ago

8 0

Answer:

1. the voltage will be 2.35×12.5 = 29.4V

2. the resistance would be 9.0/6.2= 1.45ohms

3. in series they will add up thus 4+8+12= 24ohms

4. in parallel it will be 2.18ohms

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Answer:

The correct option is H

Explanation:

From the question we are told that

The index of refraction of coating is $n_1$

The index of refraction of material is $n_2$

Generally the condition for constructive for a thin film interference is mathematically represented

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Here t represents the thickness

For minimum thickness m = 0

So

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A carbon resistor is to be used as a thermometer. On a winter day when the temperature is 4.00°C, the resistance of the carbon r

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Answer:

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Explanation:

We are given that

$T_1=4.00^{\circ}$

$R_1=217.7 \Ohm$

$R_2=215.1\Ohm$

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We know that

$\alpha(T_2-T_1)=\frac{R_2}{R_2}-1$

Using the formula

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7 0

3 years ago

Does anyone know? Please help! Thank you!

Vedmedyk [2.9K]

B density will increase

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Read 2 more answers

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Answer:

(A) ratio of electric force to weight will be $23.469\times 10^{-10}$

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