Questions
Electric current has both magnitude and direction. But it is a scalar. If it is assumed as vector quantity, then :
a
Charge conservation principle fails
b
This does not fail
c
Coulomb’s law fails
d
None of the above
detailed solution
Correct option is A
current doesnot obey laws of vector addition. As current is a scalar quantity the law of conservation of charge holds goodAccording to vector addition, if current is a vector i=i21+i21+2i1i2cosθAs cosθ lies between -1 and +1i1-i2≤i≤i1+i2Q1-Q2≤Q≤Q1+Q2from above equation charge is not conserved as current entering junction is not equal to current leaving the junctionTalk to our academic expert!
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