World's only instant tutoring platform
Search questions and Textbooks
dropdown-logo
Instant TutoringAbout Us
Login
App StorePlay Store
Get 2 FREE Instant-Explanations on Filo with code FILOAPP
Consider a 72 {~cm} long wire A B as shown in the figure. The
Question
Medium
Timing Icon

Solving time: 2 mins

Consider a long wire as shown in the figure. The galvanometer jockey is placed at P on at a distance from A. The galvanometer shows zero deflection.
Stretched-wire potentiometer
The value of , to the nearest integer, is

Views

Views: 5,650 students

Updated on: Jun 25, 2022

Exam

Exam:

JEE Mains 2021 Mar 18 Shift 2

tutor 0tutor 1tutor 2
Found 7 tutors discussing this question
Oliver Discussed
Consider a long wire as shown in the figure. The galvanometer jockey is placed at P on at a distance from A. The galvanometer shows zero deflection.
Image
The value of , to the nearest integer, is
9 mins ago
Discuss this question LIVE
9 mins ago

Text SolutionText solutionverified iconVerified

Balanced wheat stone bridge condition


Was this solution helpful?
75
Share
Report
Video Solution

Filo tutor solutions (1)

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

filo Logo
13 mins

Uploaded on: 6/25/2022

Ask your question, on a video call with tutor

Connect instantly with this tutor

Connect now

Taught by

tutor profile picture
Rohit Madhukar

Total classes on Filo by this tutor - 3,075

Teaches : Physics, Mathematics, Biology

Connect instantly with this tutor

Connect now

Notes from this class (3 pages)

Arrow
Download
Arrow
Arrow
Arrow
Was this solution helpful?
139
Share
Report
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
Instant 1:1 help, 24x7
60, 000+ Expert tutors
60, 000+ Expert tutors
Textbook solutions
Textbook solutions
Big idea maths, McGraw-Hill Education etc
Big idea maths, McGraw-Hill Education etc
Essay review
Essay review
Get expert feedback on your essay
Get expert feedback on your essay
Schedule classes
Schedule classes
High dosage tutoring from Dedicated 3 experts
High dosage tutoring from Dedicated 3 experts
Trusted by 4 million+ students

Questions from JEE Mains 2021 - PYQs

Question 1
Easy
Views

Views: 5,611

Consider the diffraction pattern obtained from the sunlight incident on a pinhole of diameter 0.1 .  If the diameter of the pinhole is slightly increased, it will affect the diffraction pattern such that :
  1. Its size decreases, and intensity decreases
  2. Its size increases, and intensity increases
  3. Its size increases, but intensity decreases
  4. Its size decreases, but intensity increases
Topic

Topic:

Ray Optics and Optical Instruments

Exam

Exam:

JEE Mains 2021 Feb 25 Shift 2

View 4 solutions

Question 2
Medium
Views

Views: 6,277

Four NOR gates are connected as shown in figure. The truth table for the given figure is :

Topic

Topic:

Semiconductor Electronics: Materials, Devices and Simple Circuits

Exam

Exam:

JEE Mains 2021 Aug 26 Shift 2

View 2 solutions

Question 3
Medium
Views

Views: 5,718

Statement-I: The ferromagnetic property depends on temperature. At high temperature, ferromagnet becomes paramagnet.
Statement-II: At high temperature, the domain wall area of a ferromagnetic substance increases.
In the light of the above statements, choose the most appropriate answer from the option given below:
  1. Both Statement-I and Statement-II are true
  2. Statement-I is false but Statement-II is true
  3. Both Statement-I and Statement-II are false
  4. Statement-I is true but Statement-II is false
Topic

Topic:

Magnetism and Matter

Exam

Exam:

JEE Mains 2021 July 22 Shift 2

View solution

Question 4
Easy
Views

Views: 5,909

If an electron is moving in the orbit of the hydrogen atom, then its velocity for the orbit is given as :
Topic

Topic:

Atoms

Exam

Exam:

JEE Mains 2021 Mar 17 Shift 1

View 4 solutions

View more

Practice questions from Current Electricity in the same exam

Question 1
Medium
Views

Views: 5,326

In the figure shown, what is the current (in ampere) drawn from the battery? You are given :


Topic

Topic:

Current Electricity

Book

Book:

Arihant Physics JEE Main Chapterwise Solutions (2019-2002) (Arihant)

Exam

Exam:

JEE Mains 2019

View 2 solutions

Question 2
Easy
Views

Views: 6,034

In the circuit shown in figure, the potential difference between the points and will be
Topic

Topic:

Current Electricity

Exam

Exam:

JEE Mains 2000

View 5 solutions

Question 3
Medium
Views

Views: 5,898

The resistance , where and . The percentage error in R is . The value of ' x' to the nearest integer is

Topic

Topic:

Current Electricity

Exam

Exam:

JEE Mains 2021 Mar 16 Shift 1

View 2 solutions

Question 4
Hard
Views

Views: 6,111

The galvanometer deflection, when key is closed but is open equals (see figure). On closing also and adjusting to , the deflection in galvanometer becomes . The resistance of the galvanometer is given by (neglect the internal resistance of battery) :
Topic

Topic:

Current Electricity

Book

Book:

Arihant Physics JEE Main Chapterwise Solutions (2019-2002) (Arihant)

Exam

Exam:

JEE Mains 2019

View 3 solutions

Practice more questions from Current Electricity

Question 1
Hard
Views

Views: 5,662

The energy dissipated by a resistor is in when an electric current of 2 flows through it. The resistance is (Round off to the Nearest Integer).
Topic

Topic:

Current Electricity

Exam

Exam:

JEE Mains 2021 Mar 16 Shift 2

View 2 solutions

Question 2
Medium
Views

Views: 5,781

A torch bulb rated as is connected as shown in fig. the e.m.f. of the cell, needed to make the bulb glow at full intensity is :

(A)
(B)
(C)
(D)
Topic

Topic:

Current Electricity

Book

Book:

Physics Galaxy Electrostatics and Current Electricity Vol 3 A (Ashish Arora)

View 4 solutions

Question 3
Easy
Views

Views: 5,528

A voltmeter has a resistance of is connected across a cell of emf and internal resistance . The voltmeter reads the voltage of
Topic

Topic:

Current Electricity

View solution

Question 4
Hard
Views

Views: 5,692

Eleven resistors are connected in the network as shown in the figure. The equivalent resistance between A and B is
Topic

Topic:

Current Electricity

View 20 solutions

View more

Practice questions on similar concepts asked by Filo students

Question 1
Views

Views: 5,124

2. Compare the electrostatic and gravitational forces between the electron and the proton of a hydrogen atom. (Given: Coulomb, )
Topic

Topic:

Electrostats

View solution

Question 2
Views

Views: 5,075

QUESTION 3: CALCULATED FORMULA When the ball leaves the bat, the ball is traveling to the right with a speed of 61 m/s. If the ball and bat are in contact for 1.77 ms, find the horizontal (x-component) of the average force on the ball. (Write your answer using 3 significant figures)
Topic

Topic:

Physics

View solution

Question 3
Views

Views: 5,529

Please give a purely numerical value with three significant figures.
  1. I think it's asking for an angle.
  2. Question 2
  3. 1 pt
  4. Two rays are incident at Og on the blue surface, one with electric field E1 and one with electric field E2. What will be the polarization vector of the light arriving at the green screen, a1 or a2?
Topic

Topic:

Physics

View solution

Question 4
Views

Views: 5,324

Pepses. Inter (Second Year) Q. Define (i) intrinsic semi conductor (ii) extrinsic semi conductor with one example. Ans. : A semiconductor in its pure form is called intrinsic semiconductor. Ex. - Si. A semiconductor having some impurities in it, is called extrinsic semiconductor. Ex. - Silicon doped with phosphorus. Q. What do you mean by Positive and Negative charge carrier in a semi conductor? Ans. : Every trivalent atom added to an intrinsic semiconductor creates a vacancy of one electron. This is çalled hole, which is positive charge carrier in a p-type semiconductor. Every pentavalent atom added to an intrinsic semiconductor creates one extra electron in -type semi conductor, which is negative charge carrier in -type semiconductor. Q. Why is a sample of -type semiconductor electrically neutral, though it has an excess of negative charge carrier? Ans. Every atom whether it is of pure semiconductor or of pentavalent impurity, is neutral, therefore -type semiconductor is neutral. Q. What is a semiconductor? Give some propertics of semiconductors. Ans. Semiconductor is a solid material whose conductivity is less than that of a conductor but more than that of an insulators. The conductivity of semiconductors is directly proportional to the temperature. At absolute zero they behave like insulator. Semiconductors have forbidden energy gap of or the energy required by an clectron to jump from valence band to conduction band is . They are crystalline solids. Germenium (Ge) and Silicon (Si) are the most commonly used semiconductors. Q. What is Forbidden Energy Gap? Ans : In an atom electrons have well-defined energy levels which are known as energy bands. The outermost band is called valence band and the innermost band is known as conduction band. There exists a small gap between the valence band and the conduction band, which is known as Forbidden Energy Gap. Forbidden Energy Gap is defined as the minimum energy required by an clectron to jump from valence band to conduction band. Q. Define -type -type semiconductor. What is depletion layer potential barrier? Ans. : p-type semiconductor : When a trivalent element is added to an intrinsic semiconductor, it is known as p-type semiconductor. Each trivalent. element creates a vacancy of one electron which is known as hole. -type semiconductors have excess of holes. Silicon deped with Boron is a p-type semiconductor.
Topic

Topic:

Kinematics and Laws of Motion

View solution

View more
Doubt Icon Doubt Icon

Stuck on the question or explanation?

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

231 students are taking LIVE classes

Related books for questions on Current Electricity

next icon
next icon

Previous year question papers

next icon
next icon
Question Text
Consider a long wire as shown in the figure. The galvanometer jockey is placed at P on at a distance from A. The galvanometer shows zero deflection.

The value of , to the nearest integer, is
Updated OnJun 25, 2022
TopicCurrent Electricity
SubjectPhysics
ClassClass 12
Answer TypeText solution:1 Video solution: 1
Upvotes214
Avg. Video Duration13 min