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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":415,"_416":417,"_263":370,"_418":419,"_420":421,"_110":426},"jTyjkbTclDzQRBSfhkPLgLZm8KiPKs","q","A galvanometer has a resistance of 5Ω. By using a shunt wire of resistance 0.05Ω, the galvanometer could be converted to an ammeter capable of reading 2Amp. What is the current through the galvanometer?","ans",[414],2,"1999","course","physics","exp","Shunt resistance is usually given as
\nR = igrg/(I - ig)
\nWhere R = 0.05Ω
\nrg = 5Ω
\nI = 2M
\n∴ ig = IR/(rg + R)
\n= (2 x 0.05)/(5 + 0.05)
\n= 0.10/5.05
\n= 0.0198A
\n= 19.8mA
\n= 20mA","opts",[422,423,424,425],"2mA","10mA","20mA","25mA",27,"27","initComment","initReply","actionData","errors"]

JAMB - Physics (1999 - No. 27)

Explanation

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