Combination of Bulbs

Assertion: In series combination of electric bulbs th ebulb of lower power emits more light than that of higher power bulb. Reason: The lower power bulb in series gets more current than the higher power bulb.

Three electric bulbs of 200 W and 400 W are shown in figure. The resultant power of the combination if rated voltage is applied across the combination is (50x) Watt. Find value of x.

Assertion: Two electric bulbs of 50 and 100W. Are given. When connected in sereis 50W bulb glows more but when connected parallel 100 W bulb glows more. Reason : In series combination, power is directly proportional to the resistance of circuit. but in parallel comb ination, power is inversely proportional to the resistance of the circuit.

A 50 W bulb is in series with a room heater and the combination is conneted across the mains. To get max, heater output, the 50 W bulb should be replaced by :

An electric bulb rated 220 V and 60 W is connected in series with another electric bulb rated 220 V and 40 W . The combination is connected across a source of emf 220 V . Which bulb will glow more?

Standard rating of each bulb is P, V. If total power consumption by combination is (3XP)/5 then calculate 'X'.

Three electric bulbs of 200 W, 200 W and 400 W are connected as shown in figure. The resultant power of the combination is

Two 220 volt, 200 W bulbs are connected first in series and then in parallel. Each time the combination is connected to 220 V. The ratio of power drawn by the combination in respective cases is

Two 220 V,100 W bulbs are connected first in series and then in parallel. Each time the combination is connected to a 220 V AC supply line. The power drawn by the combination in each case respectively will be :

Identify the right combination (a) carrot-tuberous root- head inflorescence (b) onion-bulb-corymb (c) colocasia-Rhizome-spadix (d) bougainvillea-thorns-cymula