The four resistors of resistance 2 Ω, 4 Ω, 1 Ω and 100 Ω are connected in parallel. Equivalent resistance will be a) 2 Ω
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Total resistance will always be less than the value of the smallest resistance That is,
R
total
1
=
R
1
1
+
R
2
1
+
R
3
1
+
R
4
1
thatis,R=R
total
−1
.
Therefore,
R
total
1
=
2
1
+
2
1
+
2
1
+
2
1
=2
or
R
total
=
2
1
=0.5Ω.
Hence, their equivalent resistance is 0.5 ohms.
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