Current Electricity - Result Question 11

12. A 6 volt battery is connected to the terminals of the three metre long wire of uniform thickness and resistance of 100ohm. The difference of potential between two points on the wire separated by a distance of 50cm will be[2004]

(a) 1.5 volt

(b) 3 volt

(c) 3 volt

(d) 1 volt

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Answer:

Correct Answer: 12. (d)

Solution:

(d) R

For 300cm,R=100Ω

For 50cm,R=100300×50=503Ω

IR=6

IR=6R×R=6100×503=1 volt.



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