QUIZ-1

Resistance offered by a conductor is inversely proportional to _________________.

• a. Its length

• b. its cross section area

• c. its specific resistance

• d. none of these

Kirchhoff’s first law, i.e. ∑I = 0 at junction, deals with the conservation of _____________.

• a. energy

• b. charge

• c. momentum

• d. angular momentum

Kirchhoff’s voltage law is concerned with _________.

• a. IR drops

• b. battery e.m.fs

• c. junction voltages

• d. both a. and b

According to KVL, the algebraic sum of all IR drops and e.m.fs in any closed loop of a network is always ____.

• a. zero

• b. negative

• c. positive

• d. determined by battery e.m.fs

According to KCL the algebraic sum of currents meeting at a point is ________ .

• a. zero

• b. negative

• c. positive

• d. none of the above

If two resistors of 100Ω and 100Ω are connected in parallel, the effective resistance is given by ___________.

• a. 50Ω

• b. 100Ω

• c. 1000Ω

• d. 0.2Ω

A lamp takes a current of 2.1A when supply voltage of 220V is applied. What is the resistance of the lamp?

• a. 104.76 Ω

• b. 462 Ω

• c. 10.47 Ω

• d. 46.2 Ω

Kirchoff’s First law also called as ___________ .

• a. Mesh law

• b. point law

• c. current law

• d. both b&c

kirchoff’s second law also called as_____________ .

• a. mesh law

• b. voltage law

• c. point law

• d. both a&b

The resistance ( R) is directly proportional to its __________ of the conductor

• a. cross sectional area

• b. length

• c. size d. none

• d. none