1000+ Electrical and Electronics Engineering (EEE) Online Test - 1

Question: 1

Two identical heater coils are connected in parallel across the mains. If one of the coil breaks, the other coil

(A) will also not be heated

(B) develops higher temperature

(C) develops same temperature as before

(D) develops lower temperature

Question: 2

Two lamps of 100 W and 200 W rated for 220 V are placed in series and a 440 V applied across them. Then

(A) only 100 W lamp will fuse

(B) only 200 W lamp will fuse

(C) both the lamps will fuse

(D) no lamp will fuse

Question: 3

Two bulbs of equal wattage, one having carbon filament and the other having tungsten filament, are connected in series to the mains then

(A) carbon filament glows more

(B) carbon filament glows less

(C) tungsten filament glows more

(D) both bulbs glow equally

Question: 4

A constant voltage is applied between the two ends of a metallic wire of uniform area of cross section. Some heat is developed. The heat is doubled if

(A) the length of wire is doubled

(B) the radius of wire is doubled

(C) both length and radius are halved

(D) both length and radius are doubled

Question: 5

An electric fan and a heater are marked as 100 W, 220 V and 1000 W, 220 V respectively. The resistance of heater is

(A) equal to that of fan

(B) less than that of fan

(C) greater than that of fan

(D) zero