IfachargeqisplacedatthecentreofthelinejoiningtwoequalchargesQsuchthatthesystemisin
equilinumthenthevalueofqis:
A02
B)-0/12
C)Q/4
STO14
Inthegvencircuit voltmetershowsareadingof4V,thenthepowerdevelopedacrossRresistancewillbe
2
A 15mW
B)14mW
C)12mW
D) 10mW
Aunuform wirewhenconnecteddirectlyacrossa220VlineproducesheatHpersecond. Ifthewireis
dividedimo s-partsandallpartsareconnectedinparallelacrossa220Vline, theheatproducedper
ASH
BH
DIH
CH
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