Questions
In the circuit shown below, the cell has an e.m.f. of 10 V and internal resistance of . The other resistances are shown in the figure. The potential difference is
detailed solution
Correct option is D
Equivalent external resistance of the given circuit, Req = 4 ΩCurrent given by the cell, i=EReq+r = 104+1=2 AHence, VA−VB =i2 × R2−R1=22 2−4 =−2VTalk to our academic expert!
Similar Questions
An electric current is passed through a circuit containing two wires of the same material, connected in parallel. If the lengths and radii of the wires are in the ratio of (4/3) and (2/3), then the ratio of the currents passing through the wires will be
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