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Current Electricity MCQ Level - 1 - Physics MCQ


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10 Questions MCQ Test Basic Physics for IIT JAM - Current Electricity MCQ Level - 1

Current Electricity MCQ Level - 1 for Physics 2024 is part of Basic Physics for IIT JAM preparation. The Current Electricity MCQ Level - 1 questions and answers have been prepared according to the Physics exam syllabus.The Current Electricity MCQ Level - 1 MCQs are made for Physics 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Current Electricity MCQ Level - 1 below.
Solutions of Current Electricity MCQ Level - 1 questions in English are available as part of our Basic Physics for IIT JAM for Physics & Current Electricity MCQ Level - 1 solutions in Hindi for Basic Physics for IIT JAM course. Download more important topics, notes, lectures and mock test series for Physics Exam by signing up for free. Attempt Current Electricity MCQ Level - 1 | 10 questions in 30 minutes | Mock test for Physics preparation | Free important questions MCQ to study Basic Physics for IIT JAM for Physics Exam | Download free PDF with solutions
Current Electricity MCQ Level - 1 - Question 1
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A wire is stretched to n times its length. Then the resistance now will increase by :

Detailed Solution for Current Electricity MCQ Level - 1 - Question 1

M = constant

The correct answer is: n2 times

Current Electricity MCQ Level - 1 - Question 2
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A cell has an emf 1.5 V when connected across in an external resistance of 2Ω the terminal potential difference falls to 1.0 V. The internal resistance of the cell is :

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

Internal resistance of the cell is given by 

The correct answer is: 1.0Ω

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Current Electricity MCQ Level - 1 - Question 3
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n equal cell having e.m.f. E and internal resistance  r, are connected in circuit of a resistance  R. Same current flows in circuit either they connected in series or parallel, if :

Detailed Solution for Current Electricity MCQ Level - 1 - Question 3

Current when cells are connected in series




The correct answer is: R = r

Current Electricity MCQ Level - 1 - Question 4
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The potential difference between point A  and B  is :
Current Electricity MCQ Level - 1 - Question 5
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A wire is bent in the form of a triangle now the equivalent resistance between its one end and the mid point of the side is :
Detailed Solution for Current Electricity MCQ Level - 1 - Question 5

Resistance R, R  and R/2 are in series. Their resultant resistance.


Resistance R'  and R/2 are in series. Their resultant resistance

Current Electricity MCQ Level - 1 - Question 6
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There is a voltmeter in a circuit. In order to triple its range, the resistance of how much value should be used?
Detailed Solution for Current Electricity MCQ Level - 1 - Question 6

If R  is the resistance of the voltmeter and I  current is flowing through it, then


The correct answer is: 2R

Current Electricity MCQ Level - 1 - Question 7
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Nine resistors each of resistance R  are connected in the circuit as shown in figure. The net resistance between A  and B is
Detailed Solution for Current Electricity MCQ Level - 1 - Question 7



The correct answer is: 2R/9

Current Electricity MCQ Level - 1 - Question 8
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The resistance of an ammeter is 13Ω and its scale is graduated for a current upto 100 A. After an additional shunt has been connected to this ammeter it becomes possible to measure currents upto 750 A  by this meter. The value of shunt resistance is :
Detailed Solution for Current Electricity MCQ Level - 1 - Question 8

The potential differences across ammeter and shunt is same. Let  ia is the current flowing through ammeter and i is the total current. So, a current  i - ia  will flow through. shunt resistance.


The correct answer is: 2Ω

Current Electricity MCQ Level - 1 - Question 9
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The value of i1/i2 for a given diagram is :
Current Electricity MCQ Level - 1 - Question 10
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When a wire of uniform cross-section a length ℓ and resistance R is bent into a complete circle, resistance between two of diametrically opposite points will be :
Detailed Solution for Current Electricity MCQ Level - 1 - Question 10

When wire is bent to form a complete circle then


Resistance of each semicircle 

Thus, net resistance is parallel combination of two semicircular resistances

The correct answer is: R/4

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Current Electricity MCQ Level - 1

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