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Fantom [35]
3 years ago
5

A series circuit has a voltage supply of 12 V and a resistor of 2.4 kΩ. How much power is dissipated by the resistor?

Physics
1 answer:
adell [148]3 years ago
4 0

Answer:

(B) 0.06W

Explanation:

power absorbed by the resistor is given by \frac{V^2}{R}=I^2R

Where V = voltage

           R= resistance

            I =  current through the circuit

we have given V =12 Volt and resistance =2.4 K\Omega

current I=\frac{V}{R}=\frac{12}{2.4\times 1000}=5\times 10^{-3}A=5mA

power using voltage and resistance equation

p=\frac{12^2}{2.4\times 1000}=60mW =0.06W

using current equation P=I^2R=5^2\times 12=60mW= 0.06W

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The equilibrium condition allows finding the correct answer for the force that is resisting the weight of the apple is:

        3. Normal force

Newton's second law gives the relationship between <em>force, mass</em> and acceleration of bodies, in the special case that the acceleration is is called the equilibrium condition.

            ∑ F = 0

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The free body diagram is a diagram of the forces on bodies without the details of the shape of the body, in the attached we can see a scheme of the forces.

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We can see that the only forces acting on the apple are its weights and reaction from the table called Normal.

Let's analyze the different answers:

1. False. The apple is not moving therefore the resistance is zero

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In conclusion using the equilibrium condition we can find the correct result for the force that is resisting the weight of the apple is:

        3. Normal force

Learn more here: brainly.com/question/2872207

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