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andre [41]
1 year ago
5

When two identical resistors are connected in series across ideal battery, total power dissipated by them is P. Now both are con

nected in parallel and same battery is connected across the combination. Now find the total power dissipated by both of them.
Physics
1 answer:
Art [367]1 year ago
4 0

Answer:

4 P

Explanation:

V = IR

     when they are in series   R = 2 r

     when they are in parallel R = 1/2 r

         so current will increase by a factor of 4  when they are in parallel

              and power used will also increase by a factor of 4  to  4 P

Power = IV       when I now becomes 4 I     power becomes 4 P

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Answer:

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Explanation:

From the question,

The Potential Energy of the safe = Energy of the spring when it was compressed.

mgh = 1/2ke²............... Equation 1

Where m = mass of the safe, g = acceleration due to gravity, h = height of the save above the heavy duty spring , k = spring constant, e = compression

Making k the subject of the equation,

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Constant: g = 9.8 m/s²

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