Home
Class 12
PHYSICS
Three electric bulbs of rating 60 W each...

Three electric bulbs of rating 60 W each are joined in series and then connected to electric mains. The power consumed by these three bulbs will be

A

180 W

B

60 W

C

20 W

D

`(20/3)` W

Text Solution

Verified by Experts

The correct Answer is:
C

In series `P_(S) = P/n = 60/3 = 20 W`
Promotional Banner

Similar Questions

Explore conceptually related problems

When two electric bulbs of 40W and 60W are connected in parallel, then the:

Two identical electric lamps marked 500 W , 220 V are connected in series and then joined to a 110 V line. The power consumed by each lamp is

A 25W and 100W bulbs are joined in series and connected to the mains. Which bulb will glow brighter?

A 25W and 100W bulbs are joined in series and connected to the mains. Which bulb will glow brighter?

Two electric bulbs of 40 watt each are connected in series. The power consumed by the combination will be

A room heater is rated 500 W, 220V . (a) Find the resistance of its coil. (b) If the supply voltage drops to 200 V , what will be the power consumed? ( c) If an electric bulb rated 100 W, 220 V is connected in series with this heater, what will be the power consumed by the heater and by the bulb when the supply is at 220 V ?

If two bulbs, both of rated power 100 W at 220 V, are connected in series with a 220 V supply, the total power consumed by the bulbs will be:

A 100W and a 500W bulbs are joined in series and connected to the mains which bulb will glow brighter?

Two electric bulbs rated P_(1) watt and V volt, are connected in series, across V-volt supply. The total power consumed is