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It assesses knowledge in subjects relevant to the candidate’s chosen course of study.","tags","utme jamb joint admission matriculation board unified tertiary matriculation examination nigeria africa","version","vip","location",{"_390":391,"_392":393},"type","Point","coordinates",[394,395],9.082,10.3671,"ng","priority",5,"createdOn",1755987353430,"updatedOn","questionsCount",29915,"courseCount",20,"examKey","questionData",{"_369":409,"_410":411,"_412":413,"_278":414,"_415":416,"_263":370,"_417":418,"_419":420,"_110":425},"Bvb4ZFTtH0BKgQrrXO83P7EvF27iJt","q","A 40W instrument has a resistance 90 Ohms. On what voltage should it be operated normally","ans",[95],"2018","course","physics","exp","

P = 40W

\n\n

R = 90W

\n\n

V = ?

\n\n

P = \\(\\frac{V^2}{R}\\)

\n\n

V\\(^2\\) = PR = 40 x 90

\n\n

V\\(^2\\) = 3000

\n\n

V = √3600

\n\n

V = 60N

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JAMB - Physics (2018 - No. 61)

Explanation

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