Open App

Physics Exam > Physics Tests > Current Electricity NAT Level - 2 - Physics MCQ

Current Electricity NAT Level - 2 - Physics MCQ

Test Description

10 Questions MCQ Test - Current Electricity NAT Level - 2

Current Electricity NAT Level - 2 for Physics 2024 is part of Physics preparation. The Current Electricity NAT Level - 2 questions and answers have been prepared according to the Physics exam syllabus.The Current Electricity NAT Level - 2 MCQs are made for Physics 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Current Electricity NAT Level - 2 below.

Solutions of Current Electricity NAT Level - 2 questions in English are available as part of our course for Physics & Current Electricity NAT Level - 2 solutions in Hindi for Physics course. Download more important topics, notes, lectures and mock test series for Physics Exam by signing up for free. Attempt Current Electricity NAT Level - 2 | 10 questions in 45 minutes | Mock test for Physics preparation | Free important questions MCQ to study for Physics Exam | Download free PDF with solutions

*Answer can only contain numeric values

Current Electricity NAT Level - 2 - Question 1

Figure shows a cell in which unit positive charge experience a constant non electric force of 10N and a constant electric force of 8N in directions shown in the figure. Find the emf of the cell, difference across the cell (in volt)

Detailed Solution for Current Electricity NAT Level - 2 - Question 1

V = Potential difference across the cell = Electric field × width of the cell
= 8 × 0.1 = 0.8 volt
ε = emf of the cell = 10 × 0.1 = 1.0 volt
The correct answer is: 1

Current Electricity NAT Level - 2 - Question 2

In the circuit diagram shown in find the current through the 1Ω resistor.

A.
5/2
B.
1/3
C.
3/5
D.
4/7

Detailed Solution for Current Electricity NAT Level - 2 - Question 2

1 Crore+ students have signed up on EduRev. Have you? Download the App

*Answer can only contain numeric values

Current Electricity NAT Level - 2 - Question 3

Consider the potentiometer circuit arranged as in figure. The potentiometer wire AB is 300cm long. If the jockey touches the wire at a distance of 275cm from A, then (3E/Nr) current flow through galvanometer. Find value of N.

Detailed Solution for Current Electricity NAT Level - 2 - Question 3

When Jockey is not connected

Resistance per unit length

Let potential at C is zero
Then apply Kirchoff’s Ist law

The correct answer is: 32

*Answer can only contain numeric values

Current Electricity NAT Level - 2 - Question 4

The circuit shown in the figure contains three resistors R₁ =100Ω, R₂ = 50Ω, and R₃ = 50Ω and cells of emf’s E₁ = 2V and E₂. The ammeter indicates a current of 50mA. Determine the current (mA) in the resistor R₂ :

Detailed Solution for Current Electricity NAT Level - 2 - Question 4

Applying KVL in loop ABCD
E₁ = (I + 0.05) R₁ + IR₂
I = –20mA
Current through R₁ = 30mA towards right
Current through R₂ = 20mA towards left
Applying KVL in loop BGFE
E₂ = (I + 0.05) 100 + (0.05) 20 = 4 volts

The correct answer is: 20

*Answer can only contain numeric values

Current Electricity NAT Level - 2 - Question 5

The efficiency of a cell when connected to a resistance R is 60%. What will be its efficiency (in %) if the external resistance is increased to six times.

Detailed Solution for Current Electricity NAT Level - 2 - Question 5

The correct answer is: 90

*Answer can only contain numeric values

Current Electricity NAT Level - 2 - Question 6

Find current in the branch CD of the circuit (in ampere).

Detailed Solution for Current Electricity NAT Level - 2 - Question 6

From figure current through B $\rightarrow$ D branch = 5 Amp.

The correct answer is: 15

*Answer can only contain numeric values

Current Electricity NAT Level - 2 - Question 7

Two circular rings of identical radii and resistance of 36Ω each are placed in such a way that they cross each other’s centre C₁ and C₂ as shown in figure. Conducting joints are made at intersection points A and B of the rings. An ideal cell of emf 20 volts is connected across AB. The power delivered (in watt) by cell is :

Detailed Solution for Current Electricity NAT Level - 2 - Question 7

From the figure.
AC₁ = AC₂ = C₁C₂ = radius

Hence the resistance of four section are
Hence equivalent resistance R across AB is

The correct answer is: 100

*Answer can only contain numeric values

Current Electricity NAT Level - 2 - Question 8

In the circuit shown all five resistors have the same value 200 ohms and each cell has an emf 3 volts, if the open circuit voltage is x/10 volt then x is :

Detailed Solution for Current Electricity NAT Level - 2 - Question 8

In open circuit

V_AB = 4.2V
The correct answer is: 42

*Answer can only contain numeric values

Current Electricity NAT Level - 2 - Question 9

All batteries are having emf 10 volt and internal resistance negligible. All resistors are in ohms. Calculate the current in the right most 2Ω resistor.

Detailed Solution for Current Electricity NAT Level - 2 - Question 9

The simplified circuit is.
We have to find I.
Let potential of point ‘P’ be ‘0’. Potential at other points are shown in the figure apply kirchoff’s current law at point x.

⇒ x – 10 + 2x – 20 + x – 20 + 2x – 20 = 0

The correct answer is: 70

*Answer can only contain numeric values

Current Electricity NAT Level - 2 - Question 10

Two cylinderical rods of uniform cross-section area A and 2A, having free electrons per unit volume 2n and n respectively are joined in series. A current I flows through them in steady state. Then the ratio of drift velocity of free electron in left rod to drift velocity of electron in the right rod is is :

Detailed Solution for Current Electricity NAT Level - 2 - Question 10

Since current I = neAv_d through both rods is same

The correct answer is: 1

Information about Current Electricity NAT Level - 2 Page

In this test you can find the Exam questions for Current Electricity NAT Level - 2 solved & explained in the simplest way possible. Besides giving Questions and answers for Current Electricity NAT Level - 2, EduRev gives you an ample number of Online tests for practice

Important Questions for Current Electricity NAT Level - 2

Find all the important questions for Current Electricity NAT Level - 2 at EduRev.Get fully prepared for Current Electricity NAT Level - 2 with EduRev's comprehensive question bank and test resources. Our platform offers a diverse range of question papers covering various topics within the Current Electricity NAT Level - 2 syllabus. Whether you need to review specific subjects or assess your overall readiness, EduRev has you covered. The questions are designed to challenge you and help you gain confidence in tackling the actual exam. Maximize your chances of success by utilizing EduRev's extensive collection of Current Electricity NAT Level - 2 resources.

Current Electricity NAT Level - 2 MCQs with Answers

Prepare for the Current Electricity NAT Level - 2 within the Physics exam with comprehensive MCQs and answers at EduRev. Our platform offers a wide range of practice papers, question papers, and mock tests to familiarize you with the exam pattern and syllabus. Access the best books, study materials, and notes curated by toppers to enhance your preparation. Stay updated with the exam date and receive expert preparation tips and paper analysis. Visit EduRev's official website today and access a wealth of videos and coaching resources to excel in your exam.

Online Tests for Current Electricity NAT Level - 2

Practice with a wide array of question papers that follow the exam pattern and syllabus. Our platform offers a user-friendly interface, allowing you to track your progress and identify areas for improvement. Access detailed solutions and explanations for each test to enhance your understanding of concepts. With EduRev's Online Tests, you can build confidence, boost your performance, and ace Current Electricity NAT Level - 2 with ease. Join thousands of successful students who have benefited from our trusted online resources.

Education Revolution