MediumPhysics
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-- 25. A circuit containing resistors and cells is given below. The current flowing through 10 Ω resistor is
A
Zero
B
1/2 A
C
1/4 A
D
1 A
Explanation
Using Nodal analysis or KVL. Let the bottom wire be 0V. The node between 3Ω and 6Ω is at 4.5V. The node above 10Ω is connected to a 3V battery. Calculating the potential difference across 10Ω leads to current I = ΔV/R. Solving the network yields I = 0.5 A.
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