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Vitek1552 [10]
3 years ago
7

A circuit has a current of 2.4 A. The voltage is increased to 4 times its original value, while the resistance stays the same. H

ow should the resistance change to return the current to its original value if the voltage remains at its increased amount?
Physics
2 answers:
makvit [3.9K]3 years ago
7 0

Answer:

It should increase to four times its value.

Explanation:

9966 [12]3 years ago
6 0

Answer:

Resistance will become 4 times the previous value

Explanation:

We have given current in the circuit i = 2.4 A

According to ohm's law current in the circuit is given by I=\frac{V}{R}

So 2.4=\frac{V}{R}............eqn 1

Now voltage is increased to 4 times so new voltage = 4 V

And current in the circuit is same as 2.4 A

We have to fond the resistance so that after increasing voltage current will be same

So 2.4=\frac{4V}{R_{unknown}}..........eqn 2

Dividing eqn 1 and 2

1=\frac{V}{R}\times \frac{R_{unkown}}{4V}

R_{unknown}=4R

So resistance will become 4 times the previous value

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Explanation:

The parameters of the pendulum are;

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Plugging in the values of the variables gives;

1.84 × 10⁴ N·m = 28 kg × 9.8 m/s² × l × sin(89°)

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Answer:

See the answers below.

Explanation:

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Energy can be calculated by multiplying the value of the power of the equipment by the amount of time of use.

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