A wire of resistance R is cut into ten equal parts which are then connected in parallel. The equivalent resistance of the combin
1 answer:
Answer:
<em>The equivalent resistance of the combination is R/100</em>
Explanation:
<u>Parallel Connection of Resistances</u>
If resistances R1, R2, R3,...., Rn are connected in parallel, the equivalent resistance is calculated as follows:
The electric resistance of a wire is directly proportional to its length. If a wire of resistance R is cut into 10 equal parts, then each part has a resistance of R/10.
It's known the 10 parts or resistance R/10 were connected in parallel, thus the electric resistance is:
Note the sum consists of 10 equal terms. Operating on each term:
The sum of 10 identical fractions yields 10 times each fraction:
Solving for Re needs to take the reciprocal of both sides of the equation:
The equivalent resistance of the combination is R/100
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Answer:
The tension in the rope is 20 N
Solution:
As per the question:
Mass of the object, M = 2 kg
Density of water,
Density of the object,
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From the fig.1:
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