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3 years ago

Which statement describes a resistor in a circuit?

Physics

2 answers:

Usimov [2.4K]3 years ago

5 0

Answer: B. It heats up by opposing the flow of charge through the circuit.

Explanation: A P E X

kozerog [31]3 years ago

4 0

A resistor in a circuit acts as a switch to control the flow of charge in a circuit.

<u>Explanation:</u>

An electrical components that plays a role of limiting or regulating the electrical current flow is termed as Resistor. It can be helpful for the purpose of giving certain voltage to a device like a transistor. The current that is passing through a resistor has a inverse proportionality with its resistance and direct proportionality to the voltage that is passing across it., provided another factors remaining unchanged. This can be explained by Ohm's Law.

The electric current that is passing through an electrical circuit will always be dependent on the the voltage and the resistance. When the current flowing throgh a circuit is larger then it can result in heating that damages and burn he resistors or the objects that is present around the circuit.

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A 95kg clock initially at rest on a horizontal floor requires a 560N horizontal force to set it in motion. After the clock is in

miv72 [106K]

Complete Question

A 95 kg clock initially at rest on a horizontal floor requires a 650 N horizontal force to set it in motion. After the clock is in motion, a horizontal force of 560 N keeps it moving with a constant velocity. Find the coefficient of static friction and the coefficient of kinetic friction.

Answer:

The value for static friction is $\mu_s = 0.60$

The value for static friction is $\mu_k = 0.70$

Explanation:

From the question we are told that

The mass of the clock is $m = 95 \ kg$

The first horizontal force is $F _s = 560 \ N$

The second horizontal force is $F _k = 650 \ N$

Generally the static frictional force is equal to the first horizontal force

$F _s = m * g * \mu_s$

=> $560 = 95 * 9.8 * \mu_s$

=> $\mu_s = 0.60$

Generally the kinetic frictional force is equal to the second horizontal force

$F _k = m * g * \mu_k$

$650 = 95 * 9.8 * \mu_k$

$\mu_k = 0.70$

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3 years ago

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LUCKY_DIMON [66]

Answer:

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Why is there no drag in space?????? Help me please!!! Thanks!!!

astraxan [27]

It is beacuse of fluid If there is no fluid, there is no drag. Drag is generated by the difference in velocity between the solid object and the fluid. If this statement is correct then how can there be drag in space if there is no air?

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3 years ago

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What factor affects weight( what force causes weight to change)

Alex Ar [27]

Answer:

Gravitational force affects weight, weight changes with change in gravity

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3 years ago