Home
Class 12
PHYSICS
There are two separate coils in a heater...

There are two separate coils in a heater . If one col is used then it takes 20 minutes to boil a given amount of water completely. But when its other coil is used then it takes 5 minutes to boil the same amount of water. Calculate the time taken to boil the same amount of water using the same source when the two coils are connected (1) in series and (2) in parallel.

Text Solution

AI Generated Solution

To solve the problem, we need to analyze the heating effect of the two coils when they are connected in series and in parallel. Let's denote the following: - \( V \): Voltage of the source - \( R_1 \): Resistance of the first coil - \( R_2 \): Resistance of the second coil - \( T_1 \): Time taken by the first coil to boil the water (20 minutes) - \( T_2 \): Time taken by the second coil to boil the water (5 minutes) - \( H \): Heat required to boil the water ...
Promotional Banner

Similar Questions

Explore conceptually related problems

A coil takes 15 min to boil a certain amount of water, another coil takes 20 min for the same process. Time taken to boil the same amount of water when both coil are connected in series

A heater takes 50 minute to boil a given amount of water, its coil is broken in five equal parts. If one part is used, then how much time it will take to boil the same amount of water using the same source?

A heater boils certain amount of water in 15 minutes. Another heater boils same amount of water in 10 minutes. Time taken to boil same amount of water when both are used in parallel is

The amount of water vapour in the air is the same everywhere.

All solids expand by the same amount when heated to the same rise in temperature.

How is the boiling point of water affected when some salt is added to it ?

An electric kettle has tow heating coils. When one of the coils connected to an AC source, the water in the kettle boils in 10 min. when the other coil is used the water boils in 40 min. if both the coils are connected in parallel, the time taken by the same quantity of water of boil will be

An electric kettle has two coils. When one of these is switched on, the water in the kettle boils in 6 minutes. When the other coil is switched on, the water boils in 3 minutes. If the two coils are connected in series, find the time taken to boil the water in the kettle.

An electric kettle has two coils of same power . When one coil is switched on , it takes 15 min to boil water , and when the second coil is switched on , it takes 30 min . How long will it take to boil water when both the coils are used in i . Series and ii . parallel?

If a person happens to take large amount of water, the amount of ADH in blood will