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Topicwise Test - Class 10- SSC-Maharashtra Board Notes

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Published in: Science
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SSC State Board - NEW COURSE- Topicwise Test- Effects of Electric Current- Science - Part I

Onkar K / Mumbai

4 years of teaching experience

Qualification: Not Applicable (Jamnalal Bajaj Institute of Management Studies (JBIMS), Mumbai - 2018), B.Tech/B.E. (Fr. Conceicao Rodrigues College of Engineering (FCRCE), Mumbai - 2015)

Teaches: English, Mathematics, NTSE, Science, B.Tech Tuition, Banking & Finance, Business Mathematics, Bank Clerical, Bank PO, IBPS, SBI Exam, SSC Exams, BBA Entrance, Management Subjects, MBA Entrance, CMAT, IBSAT, MAT, NMAT, TISSNET

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  1. SSC (BATCH -2018-19) [NEW COURSE] Subject: Science & Tech-I Topic : Effects of Electric Current Marks : 40 Time: 2 Hrs [3] l. Fill in the blanks : 1 . The deflection of the pointer of is on either side of zero mark. (Voltmeter/ Ammeter/ Galvanometer/ Thermometer) 2. The frequency of AC current in India is (60/ 220/ 1 80/ 50) 3. The Sl unit of electric charge is (volt/ ampere/ coulomb/ ohm) ll. Ill. Hz. State whether the following is True or False. If False, write the correct statement. [4] 1 . When live wire and neutral wire comes in contact with each other, it may cause short circuit. 2. Resistivity of a conductor does not depend upon its temperature. 3. The filament in electric bulb is made of wire with high melting point. 4. When more electrical appliances are used together, it may cause short circuit. Find the odd word out. 1 . Loudspeaker, Microphone, Electric Motor, Magnet 2. Armature coil, Brushes, Magnet, Direct Current. 3. Electric Heater, Electric Bulb, Electric Fuse, Electric Press. IV. Answer the following . [3] 1 . Give Reason :ln electric equipments producing heat e.g. iron, electric heater, boilers, toaster etc, an alloy such as Nichrome is used, not pure metal. 2. Give Reason :ln practice the unit kWh is used for the measurement of electrical energy rather then joule. 3. Distinguish between : Direct Current and Alternating Current. 4. Distinguish between : Electric Motor and Electric Generator 5. Derive Joule's law with the help of neat circuit diagram.
  2. V. Answer the following in Brief : 1 . Explain the construction and working of Electric Motor with neat labeled diagram 2. Explain the construction and working of Electric Generator with neat labeled diagram. VI. Solve the following . [8] [6] 1 . An electric iron of 1100 W is operated for 2 hrs daily. What will be the electrical consumption expenses for that month of April? The electric company charges Rs.5 per unit of energy. 2. An electric iron uses a power of 1 1 00 W when set to high temperature. If set to low temperature, it uses 330 W power. Find out the electric current and the respective resistance of 220 v. Vll. Answer in Short : (Any 3) 1 . What is Solenoid ? Draw a neat labeled diagram of Solenoid . 2. State : a) Faradays law of induction. b)Heating effect of electric current 3. State: a) Flemings left hand rule b)Maxwell's cork —screw rule. 4. How does short circuit form? What is its effect? ---xxxxxxxxxxx--- [6]

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