CameraIcon

SearchIcon

MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Parallel and Series Combination of Capacitors

A heater coil...

Question

A heater coil connected to a $220 V$ has a resistance of $150 o h m .$ How long will it take for this coil to heat $1 k g$ of water from $20^{0} C t o 60^{0} C,$ assuming that all heat is taken up by water $.$

A

210

sec

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

420

sec

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

520

sec

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

D

None of these

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C $520$ sec
Hence, option $(C)$ ids correct answer.

Suggest Corrections

thumbs-up

2

Similar questions

Q. A coil of resistance 100 Ω is connected across a battery of emf 6.0 V. Assume that the heat developed in the coil is used to raise its temperature. If the heat capacity of the coil is 4.0 J K⁻¹, how long will it take to raise the temperature of the coil by 15°C?

Q. An immersion heater rated 1000 W, 220 V is used to heat 0.01 m³ of water. Assuming that the power is supplied at 220 V and 60% of the power supplied is used to heat the water, how long will it take to increase the temperature of the water from 15°C to 40°C?

An electric heater connected to a 220V lines has two resistance coils of 22 Ohms each. Calculate the current if these coils are used:

a) Separately
b) In Series
c) In Parallel

Q. An electric kettle has two coils. When one coil is connected to the AC mains the water in the kettle boils in 10 minutes. When the other coil is used the same quantity of water takes 15 minutes to boil. How long will it take for the same quantity of water to boil if the two coils are connected in parallel?

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Series and Parallel Combination of Capacitors

PHYSICS

Watch in App

explore_more_icon

Explore more

Parallel and Series Combination of Capacitors

Standard XII Physics

Join BYJU'S Learning Program

CrossIcon