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Programed instructional material: Electricity

This document is an instructional material for a class 10 electricity module, outlining objectives like recalling concepts of electricity and defining electromagnetic force. It explains the nature of electric charges on electrons (negative) and protons (positive), their magnitudes, and the concept of electrostatic forces. The document includes interactive questions and answers to reinforce the learning of these fundamental topics.

Education◦
Topic: Elecrticity Class: 10 Medium: English Let’s start module Programmed Instructional material
Objectives At the end of this module you will be able to- • recall the concept of electricity • define the term electromagnetic force • know about the nature of charge on electron and proton Let’s start module
ELECTRICITY The ward electricity refers to the natural phenomenon known only by its effects like electric current, electric field and electromagnetism . Electricity or electric phenomena are caused by electric charges . charge is the fundamental property of material particles because of which they exert electric force on one another. Nature of charge on electron is negative and charge on proton is positive. Magnitude of charge of electron is -1.6/10(-19)c and charge of photon is +1.6/10(-19)c. S.I unit of charge which is called “coulomb”. similar charges repel each other and unlike charges attract each other. The material which loses electrons become positively charged(due to the presence of excess proton) and the material which gains electrons become negatively charged. Both the material will get equal amount of charges. Like charge repel and unlike charge attract each other and these force are called electrostatic forces. Let’s answer some questions
Q1: Electricity is caused by………….. Electrons Protons Electric charges Electric field
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Q2: Nature of charge on electron is Negative Positive Neutral All of above
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Q3: Magnitude of charge of photon is -1.6/10(-19)c +-1.6/10(-19)c +1.6/10(-19)c 1.6/10(-19)c
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Q4: S.I unit of charge is Resistance Ohm Ampere coulomb
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Oops! Wrong Answer Click Here to attempt the question again Hint! Current is measured in ampere and resistance is measured in ohm.
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Q5: Like charge repel and unlike charge attract each other and these force are called- Electromagnetic force Electric current Electrostatic force None of these
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Oops! Wrong Answer Click Here to attempt the question again Hint!
Congratulations you have selected Right Answer! Click Here to know your score…
Congratulations you have Scored 50 marks!