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A circuit has a current of 1. 2 A. If the voltage decreases to one-third of its original amount while the resistance remains constant, what will be the resulting current? 0. 3 A 0. 4 A 1. 2 A 3. 6 A.

Sagot :

If the voltage decreases to one-third of its original amount while the resistance remains constant.  The resulting current will be 0.4 A.

What is current?

The current is the stream of electrons flowing from positive terminal of the battery to the negative terminal so as to generate electricity.

The circuit has a current of 1.2 A.

When the resistance  is constant, the voltage is proportional to current. According to the ohm's law,

V₂ / V₁ = I₂ / I₁

Substitute V for V₁ , V /3 for V₂ , 1.2 for I₁ , we get the resulting current,

I₂ = 0.4 A

Thus, the resulting current will be 0.4 A.

Learn more about current.

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