Get 2 FREE Instant-Explanations on Filo with code FILOAPP

Home

Science

Electricity

Two lamps, one rated 100 W at 220 V, and the other 60 W at 220

Science

Class 10

NCERT

Chapter 1: Chemical Reactions and Equations

34 questions

Chapter 2: Acid,Bases and Salts

39 questions

Chapter 3: Metals and Non-metals

38 questions

Chapter 4: Carbon and its Compound

24 questions

Chapter 5: Periodic Classification of Elements

30 questions

Chapter 6: Life Processes

13 questions

Chapter 7: Control and Coordination

12 questions

Chapter 8: How do Organism Reproduce?

11 questions

Chapter 9: Heredity and Evolution

12 questions

Chapter 10: Light -Reflection and Refraction

34 questions

Chapter 11: The Human Eye and Colourful World

18 questions

Chapter 12: Electricity

49 questions

Calculate the power used in the $2 Ω$ resistor in each of the following circuits:

(i) a $6 V$ battery in series with $1 Ω$ and $2 Ω$ resistors, and (ii) a $4 V$ battery in parallel with $12 Ω$ and $2 Ω$ resistors.

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

Which uses more energy, a 250 W TV set in 1 hr, or a 1200W toaster in 10 utes?

View all question

Chapter 13: Magnetic Effects of Electric Current

39 questions

Chapter 14: Sources of Energy

24 questions

Chapter 15: Our Environment

9 questions

Chapter 16: Sustainable Management of Natural Resources

7 questions

Question

Medium

Solving time: 3 mins

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

Views: 5,635 students

Updated on: Sep 25, 2023

Book:

Science (NCERT)

Found 2 tutors discussing this question

Elizabeth Discussed

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

6 mins ago

Discuss this question LIVE

6 mins ago

Text solutionVerified

From Joule's Law of heating,

P = V^{2} / R

For first lamp,

R_{1} = 22 0^{2} /100

For second lamp,

R_{2} = 22 0^{2} /60

When they are connected in parallel,

\frac{1}{R _{e q}} = \frac{1}{R _{1}} + \frac{1}{R _{2}}

= \frac{1}{22 0 ^{2} /100} + \frac{1}{22 0 ^{2} /60}

⟹ R_{e q} = 22 0^{2} /160

From Ohm's Law,

V = I R_{e q}

220 = \frac{22 0 ^{2}}{160} I

I = 0.73 A

Was this solution helpful?

Report

Filo tutor solutions (16)

Learn from their 1-to-1 discussion with Filo tutors.

9 mins

Uploaded on: 2/13/2023

Ask your question, on a video call with tutor

Connect instantly with this tutor

Connect now

Taught by

Shivam Dixit

Total classes on Filo by this tutor - 1,249

Teaches : Science, Mathematics, Social Studies (SST)

Connect instantly with this tutor

Connect now

Notes from this class (3 pages)

Download

Was this solution helpful?

Report

8 mins

Uploaded on: 4/14/2023

Ask your question, on a video call with tutor

Connect instantly with this tutor

Connect now

Taught by

Shubham Kumar

Total classes on Filo by this tutor - 22,328

Teaches : Physics, Inorganic Chemistry, Mathematics

Connect instantly with this tutor

Connect now

Notes from this class (3 pages)

Download

Was this solution helpful?

Report

4 mins

Uploaded on: 5/19/2023

Ask your question, on a video call with tutor

Connect instantly with this tutor

Connect now

Taught by

Er M K Gupta

Total classes on Filo by this tutor - 11,532

Teaches : Physics, Mathematics

Connect instantly with this tutor

Connect now

Notes from this class (1 pages)

Download

Was this solution helpful?

101

Report

See more 1-on-1 discussions (13)

One destination for complete JEE/NEET preparation

One destination to cover all your homework and assignment needs

Learn Practice Revision Succeed

Instant 1:1 help, 24x7

60, 000+ Expert tutors

Textbook solutions

Big idea maths, McGraw-Hill Education etc

Essay review

Get expert feedback on your essay

Schedule classes

High dosage tutoring from Dedicated 3 experts

Trusted by 4 million+ students

Practice more questions from Science (NCERT)

Calculate the power used in the $2 Ω$ resistor in each of the following circuits:

(i) a $6 V$ battery in series with $1 Ω$ and $2 Ω$ resistors, and (ii) a $4 V$ battery in parallel with $12 Ω$ and $2 Ω$ resistors.

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

Which uses more energy, a 250 W TV set in 1 hr, or a 1200W toaster in 10 utes?

View all

Stuck on the question or explanation?

Connect with our Science tutors online and get step by step solution of this question.

231 students are taking LIVE classes

Question Text	Two lamps, one rated 100 W at 220 V, and the other 60 W at 220 V, are connected in parallel to electric mains supply. What current is drawn from the line if the supply voltage is 220 V?
Updated On	Sep 25, 2023
Topic	Electricity
Subject	Science
Class	Class 10
Answer Type	Text solution:1 Video solution: 16
Upvotes	1659
Avg. Video Duration	6 min

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

Text solutionVerified

Filo tutor solutions (16)

Practice more questions from Science (NCERT)

Practice questions from Science (NCERT)

Practice more questions from Electricity

Practice questions on similar concepts asked by Filo students

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

Text solutionVerified

Filo tutor solutions (16)

Practice more questions from Science (NCERT)

Practice questions from Science (NCERT)

Practice more questions from Electricity

Practice questions on similar concepts asked by Filo students

Related books for questions on Electricity