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3 years ago

How many ohms of resistance must be present in a circuit that has 240 volts and a current of 15 amps?

Physics

2 answers:

Mkey [24]3 years ago

8 0

THE ANSWER IS 16 ohms or however its spelled

alex41 [277]3 years ago

7 0

Answer: The correct answer is 16 ohms.

Explanation:

The mathematical expression from Ohm's law is as follows;

V=IR

Here, I is the current, V is the potential and R is the resistance.

It is given in the problem that the potential in the circuit is 240 V and the current is 15 A.

Calculate the resistance by rearranging the above expression.

$R=\frac{V}{I}$

Put I= 15 A and V= 240 V.

$R=\frac{240}{15}$

R= 16 ohms

Therefore, the value of the resistance is 16 ohms.

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3 years ago

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3 years ago

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8 0

3 years ago

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2 years ago

A 0.5 kg mass on a spring undergoes simple harmonic motion with a total mechanical energy of 12 J. If the oscillation amplitude

Darya [45]

Answer:

The frequency of the oscillation is 2.45 Hz.

Explanation:

Given;

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E = ¹/₂kA²

kA² = 2E

k = (2E) / (A²)

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k = 118.519 N/m

Determine the angular frequency, ω;

$\omega = \sqrt{\frac{k}{m} } \\\\\omega = \sqrt{\frac{118.519}{0.5} } \\\\\omega = 15.396 \ rad/s$

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f = (15.396) / (2π)

f = 2.45 Hz

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2 years ago