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Find x if P is a null point ?...


Find x if P is a null point ?

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`100-5i_(1)-20i_(1)=0`
`i_(1)=4A`
Potential gradient `=(80)/(10)=8V//m`
`8-2i_(2)-2i_(2)-2=0`

`i_(2)=(3)/(2)A`
for 5 volts `rArr(5v)/(8v//m)=(5)/(8)m`
`thereforex=(5)/(8)m`
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