Three resistances '3 Ohms','6 Ohms' and '7 Ohms' are connected in series across a potential difference of "48v".The potential difference across "7 ohms" resistance is
(a) 7v
(b) 21v
(c) 14v
(d) 28v
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Answer:
Total resistance =16 ohms.
Current drawn. By circuit. =v/1=3 ampere.
Voltage across 7 ohms=v=IR=7x3=21V
@Bblegend
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