दो विद्युत बल्बों Aतथा B पर क्रमशः 220V,40W तथा 220V,60W अंकित है। किसका प्रतिरोध अधिक है? | 12 ...

Four bulbs are connected as shown to a battery of EMF 220 V. The voltage and power rating of the bulbs are : Bulb 1 : 220 V, 100 W Bulb 2 : 220 V, 50 W Bulb 3 : 440 V, 400 W Bulb 4 : 440 V, 200 W Choose the correct choice(s)

Two electric lamps A and B marked 220 V, 100 W and 220 V, 60 W respectively. Which of the two lamps has higher resistance ?

There are two bulbs marked (a) 220V, 160W (b) 220V, 40W. Which has higher resistance?

Two electric lamps are rated as 220V. 40 W and 220V,60W. Find the heat generated per second in lamp when they are connected in series across 220V mains. Given 1 cal=4.2J.

Two electric lamps are rated as 220V. 40 W and 220V,60W. Find the heat generated per second in lamp when they are connected in series across 220V mains. Given 1 cal=4.2J.

Two bulbs are market 220V, 100W and 220V,50W respectively. They are connected in series to 220V mains. Find the ratio of heats generated in them.

Two bulbs are market 220V, 100W and 220V,50W respectively. They are connected in series to 220V mains. Find the ratio of heats generated in them.

An electric bulb is rated at 220V, 100W. What is its resistance?

A 25 W , 220 V bulb and a 100 W , 220 V bulb are connected in parallel across a 440 V line

Two bulbs are marked 220 V, 100 W and 220 V, 50W respectively. They are connected in series to 220 V mains. Find the ratio of heats generated in them.