Question

mortaric fild (0,0,3) If emservetive field The wark done is inclipustent ( frac{0}{10,0,02}, B )
7. Incth. 50
( |alpha|=q(Delta vee) )
( left.because V=frac{K O}{gamma}right] )
( =qleft[V_{B}-V_{A}right] )
( i mid=qleft[frac{K Q}{gamma_{beta}}-frac{K theta}{gamma_{A}}right]=-2 times 10^{-9}left[frac{9 times 10^{9} times 8 times 10^{-3}-9 times 10^{9} times 8 times 10^{-3}}{0.04}right] )
( k !=-2 times 10^{-9} times 9 times 10^{9} times 8 times 10^{-3}left[frac{1}{0.04}-frac{1}{0.03}right] )
( left.Rightarrow|u|=left.frac{-2 times 9 times 8 times[-1]}{10^{-2}}right|_{12}right] )
( k 1=1.2 ) Jouk

# in taking a charge 28. Calculate the work done in taking -2 x 10°C from A to B via C (in diagra z(cm) C(0,6,9) A(0,0,3)/ Y LIB q = 8 mgo (0,4,0) (cm) x(cm) (1) 0.2 joule (3) 2.2 joule (2) 1.2 joule (4) Zero

Solution