6. Kirchhoff’s laws are valid for :
(a) passive time invariant circuits
(b) linear circuit only
(c) nonlinear circuits only
(d) both linear and nonlinear circuits
7. Kirchhoff’s laws fail in case of :
(a) linear networks having both ac and DC supply
(b) nonlinear networks having DC supply
(c) dual networks having ac supply only
(d) distributed parameter networks having DC supply
8. Kirchhoff’s laws valid for circuit contain :
(a) resistors
(b) transistors
(c) vacuum tubes
(d) semiconductor devices
9. According to KCL as applied to a junction in a network of conductors :
(a) total sum of currents meeting at the junction is zero
(b) no current can leave the junction without some current entering it
(c) net current flow at the junction is positive
(d) algebraic sum of the currents meeting at the junction is zero
10. According to KVL, the algebraic sum of all IR drops and EMFs in any closed loop of a network is always …………….
(a) zero
(b) positive
(c) negative
(d) greater than unity
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