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JEE Main 8 Jan 2020 Shift 1 Solved Paper
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© examsnet.com
Question : 21
Total: 75
Four resistances o f 15Ω, 12Ω, 4Ω and 10Ω respectively in cyclic order to form Wheatstone's network. The resistance that is to be connected in parallel with the resistance of 10Q to balance the network is ______ Ω.
Your Answer:
Validate
Solution:
Let the resistance to be connected is R.
For balanced Wheatstone bridge
15
×
4
−
12
×
10
R
10
+
R
R
=
10
Ω
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