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Mnenie [13.5K]
3 years ago
9

If you double both the current and the voltage in a circuit, the power _______. View Available Hint(s) If you double both the cu

rrent and the voltage in a circuit, the power _______. remains unchanged if resistance remains constant halves quadruples doubles
Physics
1 answer:
EastWind [94]3 years ago
5 0

Answer:

power will be quadruples    

Explanation:

We know that power in circuit is given by P = VI ,here V is voltage and I is current

Now according to question if we double the voltage and current then power

P will be P _{new}= 2V\times 2I = 4 VI = 4P

As we know that power is given by P = VI

So new power will be 4 P

So power will be quadruples

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Answer: 9 km/h

Explanation:i’m pretty sure

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4 years ago
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The presence of a uniform magnetic field may be detected by using a
Alex777 [14]

Answer:

Magnetic compass

Explanation:

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3 years ago
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What are possible formulas for impulse? Check all that apply. J = Fdeltat J = StartFraction force over change in time EndFractio
Alex

<u>The possible formulas for impulse are as follows:</u>

J = FΔt

J = mΔv

J = Δp

Answer: Option  A, E and F

<u>Explanation:</u>

The quantity which explains the consequences of a overall force acting on an object (moving force) is known as impulse. It is symbolised as J. When the average overall force acting on an object than such products are formed and in given duration than the start fraction force over change in time end fraction J = FΔt.

The impulse-momentum theorem explains that the variation in momentum of an object is same as the impulse applied to it: J = Δp J = mΔv if mass is constant J = m dv + v dm if mass changes. Logically, the impulse-momentum theorem is equivalent to Newton second laws of motion which is also called as force law.

6 0
3 years ago
The volume occupied by a sample of gas is 480 mL when the pressure is 115 kPa.What pressure must be applied to the gas to make i
balandron [24]

Answer:

The answer is

<h2>84.9 kPa</h2>

Explanation:

Using Boyle's law to find the final pressure

That's

P_1V_1 = P_2V_2

where

P1 is the initial pressure

P2 is the final pressure

V1 is the initial volume

V2 is the final volume

Since we are finding the final pressure

P_2 =  \frac{P_1V_1}{V_2}

From the question

P1 = 115 kPa

V1 = 480 mL

V2 = 650 ml

So we have

P_2 =  \frac{115000 \times 480}{650}  = \frac{55200000}{650}  \\  = 84923.076923...

We have the final answer as

<h3>84.9 kPa</h3>

Hope this helps you

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Julia performs an experiment to measure the wavelength of four different waves and records her data in the table below.
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