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NEET Exam  >  NEET Tests  >  Physics Class 12  >  Test: Basic Properties of Electric Charge (NCERT) - NEET MCQ

Test: Basic Properties of Electric Charge (NCERT) - NEET MCQ


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5 Questions MCQ Test Physics Class 12 - Test: Basic Properties of Electric Charge (NCERT)

Test: Basic Properties of Electric Charge (NCERT) for NEET 2024 is part of Physics Class 12 preparation. The Test: Basic Properties of Electric Charge (NCERT) questions and answers have been prepared according to the NEET exam syllabus.The Test: Basic Properties of Electric Charge (NCERT) MCQs are made for NEET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Basic Properties of Electric Charge (NCERT) below.
Solutions of Test: Basic Properties of Electric Charge (NCERT) questions in English are available as part of our Physics Class 12 for NEET & Test: Basic Properties of Electric Charge (NCERT) solutions in Hindi for Physics Class 12 course. Download more important topics, notes, lectures and mock test series for NEET Exam by signing up for free. Attempt Test: Basic Properties of Electric Charge (NCERT) | 5 questions in 5 minutes | Mock test for NEET preparation | Free important questions MCQ to study Physics Class 12 for NEET Exam | Download free PDF with solutions
Test: Basic Properties of Electric Charge (NCERT) - Question 1
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The number of electrons present in -1C of charge is

Detailed Solution for Test: Basic Properties of Electric Charge (NCERT) - Question 1

By quantisation of charge, q = ne
or 

Test: Basic Properties of Electric Charge (NCERT) - Question 2
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A cup contains 250 g of water. Find the total positive charges present in the cup of water.

Detailed Solution for Test: Basic Properties of Electric Charge (NCERT) - Question 2

Mass of water = 250 g,
Molecular mass of water = 18 g
Number of molecules in 18 g of water = 6.02 x 1023
Number of molecules in one cup of water = (250/18) x 6.02 x 1023
Each molecule of water contains two hydrogen atoms and one oxygen atom, i.e., 10 electrons and 10 protons.
∴ Total positive charge present in one cup of water
= (250/18) x 6.02 x 1023 x 10 x 1.6 x 10-19 C = 1.34 x 107C.

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Test: Basic Properties of Electric Charge (NCERT) - Question 3
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A polythene piece rubbed with wool is found to have a negative charge of 6 x 10-7 C. The number of electrons transferred to polythene from wool is 

Detailed Solution for Test: Basic Properties of Electric Charge (NCERT) - Question 3

 Here, q = -6 x 10-7 C
∴ Number of electrons transferred from wool to polythene, n = 

Test: Basic Properties of Electric Charge (NCERT) - Question 4
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If 109 electrons move out of a body to another body every second, then the time required to get charge of 1 C on the other body is 
Detailed Solution for Test: Basic Properties of Electric Charge (NCERT) - Question 4

The charge given out in one second = 1.6 x 10-19 C x 109 = 1.6 x 10-10C
Time required to accumulate a charge of 1 C
= 1/(1.6 x 10-10) = 6.25 x 109 s = 198 years

Test: Basic Properties of Electric Charge (NCERT) - Question 5
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The number of electrons that must be removed from an electrically neutral silver dollar to give it a charge of +2.4 C is
Detailed Solution for Test: Basic Properties of Electric Charge (NCERT) - Question 5

Total charge, q = 2.4 C
Then by quantization of charge, q = ne
∴ number of electrons, n = q/e = 2.4C/1.6 x 10-19 C = 1.5 x 1019

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