Two bulbs are rated `(P_1, V)` and `(P_2, V)`. If they are connected (i) in parallel across a supply of V
find the power dissipated in the two combination in terms of `P_1` and `P_2`?

Two bulbs are rated (P_1, V) and (P_2, V) . If they are connected (i) in series find the power dissipated in the two combination in terms of P_1 and P_2 ?

Two electric bulbs P and Q have their resistances in the ratio of 1: 2. They are connected in series across a battery. Find the ratio of the power dissipation in these bulbs.

If two identical heaters each rated as 1000 W. 220V are connected in parallel to 220 V, then the total power consumed as

A 60W-220V bulb and 100W-220V bulb are connected in parallel to main supply. Which bulb will draw more current?

Two lamps, one rated 100 W at 220 V and other 60 W at 220 V, are connected in parallel to electric main supply. What current is drawn from the line if the supply voltage is 220 V?

A wire when connected to 220 V mains supply has power dissipation P_1 . Now the wire is cut into two equal pieces which are connected in parallel to the same supply. Power dissipation in this case is P_2. Then P_2: P_1 is