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3 years ago

Please help on this one?

Physics

1 answer:

lisov135 [29]3 years ago

3 0

Answer:

The current in a resistor decreases by a factor of 4.

Explanation:

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

Where (I) is the current, (E) is the voltage and (R) is the resistance.

Decreasing the voltage by 4 gives;

I = 0.25 $\frac{E}{R}$

Since you have multiplied $\frac{E}{R}$ by 0.25,

You have to multiply I by 0.25 so the current decreases by a factor of 4.

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3 years ago

A straight wire that is 0.60 m long is carrying a current of 2.0 A. It is placed in a uniform magnetic field of strength 0.30 T.

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3 years ago

A horizontal force of 164 N is applied to move a 55 kg television set across a 9 m level surface. What is the work done by the f

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Answer:

Workdone = 1476 Nm

Explanation:

Given the following data;

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To find the work done;

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Therefore, the work done by the force on the television set is 1476 Nm.

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3 years ago