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Mkey [24]
3 years ago
13

What are the precaution you take when you are carrying out experiment on kirchhoffs law​

Physics
1 answer:
sdas [7]3 years ago
4 0

Answer:

The precautions to be followed for performing kirchoff law experiment are:-

  1. check that all the connections inside the arrangement are tight and clean.
  2. check that the terminals of the resistances  are nicely attached.
  3. ensure that the instruments used in the experiment set-up are indicating zero.(before starting of the experiment)

Explanation:

These are the basic precautions that must be kept in mind before executing kirchoff law experiment.

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We can calculate the length of each spring by using the relationship:
F=kx
where
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Re-arranging the equation, we have
x= \frac{F}{k}

The force applied to both spring is F=60 N. Spring A has spring constant of k=4 N/m, therefore its length with respect to its rest position is
x_A= \frac{F}{k_A}= \frac{60 N}{4 N/m}=15 m
Spring B has spring constant of k=5 N/m, so its length with respect to its rest position is
x_B= \frac{F}{k}= \frac{60 N}{5 N/m}=12 m

Therefore, the correct answer is
<span>D.Spring A is 3 m longer than spring B because 15 – 12 = 3.</span>
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