a cell is connected across the resistance to form an electrical circuit. on adding 5 ohms to the resistance the current in the circuit is reduced to 5 /6 of its original value find the original resistance in the circuit
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I (see) _____ many pictures of the pyramids before I went to Egypt. Pictures of the monuments are very misleading. The pyramids are actually quite small.
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1
Answer:
The original resistance will be 1Ω
Explanation:
Let the original resistance be R
And, original current be i
Now, the new resistance = R' = R + 5Ω
New current = i' = i - i(5/6) => 1/6 i
Assuming V to be constant,
V = i'R' = (R + 5) i /6 = iR
=> (R + 5) i = 6iR
=> R + 5 = 6R
=> 6R - R = 5
=> 5R = 5
=> R = 1 Ω
Thanks!
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