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cupoosta [38]
3 years ago
11

How much charge does a 9.0Vbattery transfer from the negative to the positive terminal while doing45Jof work?

Physics
1 answer:
sveticcg [70]3 years ago
3 0

Answer:

q = 5 coulombs.

Explanation:

Given :

Potential of battery , V = 9 V.

Work done in transferring charge from negative terminal to the positive terminal , W = 45 J.

We know, Work done by charge is product of its charge by its potential.

W=q\times V

Therefore, q=\dfrac{W}{V}

Putting values of W and V in above equation.

We get , q=\dfrac{45}{9}=5\ coulombs.

Hence, this is the required solution.

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Answer:

A-Caclcuate the potential energy of the ball at that height

Explanation:

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Using the Formula,Potential Energy = mgh

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(b). Now, By the law of the conservation of the Energy, Total amount of the energy of the system remains constant.

∴ Kinetic Energy before the body reaches the ground is equal to the Potential Energy at the height of 10 m.

∴ Kinetic Energy = 980 J.

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Mass of the ball = 10 kg.

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∴ 980 = 1/2 × 10 × v²

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2 years ago
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comparing the reciprocal times;

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