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How many electrons pass through a 20-ohms resistor in 10 min if there is a potential drop of 30 volts across it?

tangare [24]

The number of electrons passes through 20 ohms resistor in 10 minutes is 5.625e+21.

<h3>What is a resistor?</h3>

In an electronic circuit, a resistor is an electrical component that limits or regulates the flow of electrical current.

Given, the resistance is 20 ohms.

The potential difference is 30 volts

Time is 10 minute

By the formula of current

$\rm I = \dfrac{30}{20} = 1.5 \;C/s$

The charge flowing through the resistor is 1.5 C/s

1 electron charge is 1.6e+19

Now, the number of electrons passing through a 20 ohms resistor is

$\dfrac{1.5}{1.6e+ ^2^1} = 0.9375e+^1^9$

In 10 minutes

$0.9375e+^1^9 \times 60 \times 10 = 5.625e+^2^1$

Thus, the number of electrons passes through 20 ohms resistor in 10 minutes is 5.625e+21.

Learn more about a resistor

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Pick the correct form of the underlined part of the sentence:

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I believe the answer is B, I hope that helps!

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Once a psychoactive drug enters the brain, it acts on one or more neurotransmitters

andreyandreev [35.5K]

Psychoactive substances influence the function and interaction of one or more neurotransmitters in the brain. Depending on the type, dose, and combination of medications used as well as the individual's qualities, expectations, and environment, this can have a variety of consequences on the user's mental and physical health.

<h3>What is a psychoactive drug?</h3>

A psychoactive substance is one that modulates brain activity and has an impact on behavior, cognition, mood, or perception. Based on their results and modes of action, psychoactive substances can be divided into a variety of categories. Stimulants, depressants, opioids, hallucinogens, and cannabis are a few of the main groups.

Neurotransmitters are chemical messengers that transmit impulses between neurons (nerve cells) in the brain and other regions of the nervous system.

Psychoactive medications act on one or more neurotransmitters. The neuron sending the signal, the presynaptic neuron, releases neurotransmitters, which then bind to receptors on the postsynaptic neuron.

Depending on the type of neurotransmitter and receptor involved, this can either stimulate or inhibit the postsynaptic neuron.

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Please help! What is a personal quality?