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Circuit Laws – 1 – 1

1. Ohm’s law is not applicable to :

(a) semi-conductors.
(b) DC circuits
(c) high currents
(d) small resistors

ANSWER

EXPLANATION

2. Kirchhoff’s current law is applicable to only :

(a) closed loops in a network
(b) electronic circuits
(c) junctions in a network
(d) electric circuits

ANSWER

EXPLANATION

3. According to KVL, the algebraic sum of all IR drops and e.m.f.s in any closed loop of a network is always :

(a) zero
(b) positive
(c) negative
(d) determined by battery e.m.fs

ANSWER

EXPLANATION

4. The algebraic sign of an IR drop is primarily dependent upon the :

(a) amount of current flowing through it
(b) value of R
(c) direction of current flow
(d) battery connection

ANSWER

EXPLANATION

5. Kirchhoff’s voltage law is concerned with :

(a) IR drops
(b) battery e.m.fs.
(c) junction voltages
(d) both (a) and (b)

ANSWER

EXPLANATION

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