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2 years ago

Which resistors in the circuit must have the same amount of charge passing through each second?

Physics

2 answers:

marissa [1.9K]2 years ago

7 0

Resistors 'C' and 'D' are in series. There's only one possible route for current to flow through them. Every electron that flows through one of them has to flow through the other one. So the current (amount of charge per second) must be the same in 'C' and 'D'. <em> (answer-choice B)</em>

Schach [20]2 years ago

6 0

i belive the answer is B

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Two Physics quick help

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Answer:

21.3 V, 1.2 A

Explanation:

These resistors are in series, so the net resistance is:

R = R₁ + R₂ + R₃

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So the current is:

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So the voltage drop across R₃ is:

V = IR

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2 years ago

Why water in earthern pot remain cool in summer

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Read 2 more answers

A wooden artifact from a Chinese temple has a 14C activity of 41.0 counts per minute as compared with an activity of 58.2 counts

prohojiy [21]

Answer:

Explanation:

The relation between activity and number of radioactive atom in the sample is as follows

dN / dt = λ N where λ is disintegration constant and N is number of radioactive atoms

For the beginning period

dN₀ / dt = λ N₀

58.2 = λ N₀

similarly

41 = λ N

dividing

58.2 / 41 = N₀ / N

N = N₀ x .70446

formula of radioactive decay

$N=N_0e^{-\lambda t }$

$.70446 =e^{-\lambda t }$

- λ t = ln .70446 = - .35

t = .35 / λ

λ = .693 / half life

= .693 / 5715

= .00012126

t = .35 / .00012126

= 2886.36

= 2900 years ( rounding it in two significant figures )

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3 years ago