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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",14,"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},"qyhm1feFh36Te95VhuE70U9k9D9vWL","q","The r.m.s value of a supply voltage is quoted at 200v. What is the approximate peak value of the voltage?","ans",[414],2,"2015","course","physics","exp","V_r.m.s = V₀ ÷ V₂, where V_r.m.s rep. to as voltage root –square mean, v = peak voltage
\n
\nV_r.m.s = 200volt, v = ?
\n
\n200 = V₀ ÷ V₂
\n
\nV₀ = 200_v2
\n
\n= 200 × 1.414
\n
\n= 282.8 volts V0 = b &approx.; 283 volts","opts",[422,423,424,425],"200volts","300volts","283volts","250volts",52,"52","initComment","initReply","actionData","errors"]

JAMB - Physics (2015 - No. 52)

Explanation

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