Conductance is reciprocal of a resistance b inductance c reluctance d capacitance ans. Just exam provide a platform to all students who want to make practice for. Materials, which allow electric current to pass through them, are. The electric shocks vary in their effect, as they can be mild to. Magnetic effect of current solved cbse paper1 read download mcq class x magnetic effects of currents read download x guess questions solved sa1 read download magnetic effect eduscore solved questions. Chemical effects of electric current jsunil tutorial. X magnetic effects of currents jsunil tutorial cbse. Electric current passing through the circuit produces a magnetic effect b luminous effect c thermal effect d chemical effect e all. The resulting effects are called chemical effects of currents. Revision worksheets, sample papers, question banks and easy to learn study notes for all classes and subjects based on cbse and ncert electric current and its effects guidelines. Current electricity multiple choice questions and answers pdf,interview questions,mcqs,lab viva,seminar topics,online quiz important free download.
When an electric current flows through a copper wire ab as shown in figure, the wire a deflects a magnetic needle placed near it b becomes red hot c gives electric shock d behaves like a fuse. Ncert solutions for class 8 science chapter 14 in pdf for. Another oftenused effect of electric current is its chemical effect. Ncert exemplar problems class 7 science electric current and its effects multiple choice questions mcqs question 1. Section name topic name 14 chemical effects of electric current 14. Current electricity neet physics mcqs, study notes. Electroplating is the process of depositing a layer of any desired metal on another metallic object by means of electricity.
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The passage of an electric current through a conducting solution causes chemical reactions. Boojho and paheli performed experiments taking similar bulbs and cells but two different solutions a and b as shown in fig. The process in which chemical reaction takes place in a solution on passing electricity through it is because of chemical effect of current. It must be noted that the world today is based in power of electricity and uses various effects of electricity. Ncert solutions for class 8 science chapter 14 chemical. This page has answers to 7 multiple choice questions, 4 very short answer questions. Boojho and paheli performed experiments taking similar bulbs and cells but two different solutions a and b as shown in. Chemical effects of electric current multiple choice questions. Chemical effects of 14 electric current multiple choice questions 1.
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This is called chemical effect of electric current. What type of effect of current is illustrated by this statement. Apr 14, 2020 chapter notes chemical effects of electric current, science, class 8 edurev notes is made by best teachers of class 8. Mcq or multiple choice questions on chemical effects of electricity is for class viii students of cbse board. Learn and practice from magnetic effect of electric current quiz, study notes and study tips to help you in neet physics preparation.
D to produce a sustained electric current a source of energy, a voltage source an electric field is required. The resistance of a conductor varies inversely as a length 6 area of crosssection. Chemical effects of electric current,chemical effects of electric current get topics notes, online test, video lectures, doubts and solutions for cbse class 8 on topperlearning. Chemical effects of electric current cbse class 8 important questions classviii science chemical effects of electric current. A electric current b magnetic field c magnetic force d motion of conductor. Free pdf download best collection of cbse topper notes, important questions, sample papers and ncert solutions for cbse class 8 science chemical. Incandescent bulb is an example of a device which works because of the heating effect of electric current. Magnetic effect of electric current mcq pdf bitbin. Chemical effects of electric current worksheet for class 8. Just exam provide a platform to all students who want to make practice for various subject online. Download cbse class 8 science chemical effects of electric current worksheets for free in pdf format from urbanpro.
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The passage of an electric current through a conducting liquid causes chemical reactions. An electric fuse is based on a the heating effect of the current b the chemical. A chemical reaction takes place when electric current is passed through a conducting solution. Cbse class 8 science chemical effects of electric current. Ncert solutions for class 8 science chapter 14 chemical effects of electric current topics and sub topics in class 8 science chapter 14 chemical effects of electric current.
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Ncert solutions for class 8 science chapter 14 chemical effects of electric current 14. Free pdf download of important questions with solutions for cbse class 8 science chapter 14 chemical effects of electric current prepared by expert science teachers from latest edition of cbsencert books. The chemical effect of electric current or electrolysis is used in the production of various chemical compounds. Chemical effects of electric current,chemical effects of. The chemical effect of electric currentor electrolysis is used to decompose various chemical compounds into their elements.
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An electric current, i, is the rate at which net charge. Made by shalini yadav 8 b on chemical effects of electric. We use electricity to run different things like fans, doorbells, heaters, bulbs, and so on. Apr 16, 2020 important questions chemical effects of electric current, science, class 8 edurev notes is made by best teachers of class 8. Tungsten has very high melting point and that is the reason it is used in electric bulb. Chemical effects of electric current class 8 notes. This document is highly rated by class 8 students and has been viewed 45859 times. For example, change in colour of solutions and electroplating. Question bank chemical effects of electric current. Electric current causes a chemical reaction when it passes through a. State some of the characteristics of chemical changes brought about by the chemical effect of electric current.
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