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Sadhana Devi Vidyapith Assignment SA-1 +  Chapter: Magnetic Effects of Electric Current                                               Section-A [1-marks] 1. What does the direction of thumb indicate in the right-hand thumb rule? 2. What is the frequency of alternating current in India? 3. How will you use a solenoid to magnetize a steel bar? 4. An alternating electric current has a frequency of 50 Hz. How many times does it change its direction in one second? 5. Name devices which produce: (i) alternating current, (ii) direct current. 6. Name the physicist who discovered the magnetic effect of the electric current. 7. A straight copper conductor is held parallel to the axis of a freely suspended magnetic needle such that the conductor is under the needle and the current is flowing from south to north. In which direction the north of magnetic needle will move? 8. If a copper conductor carrying a current is held in north-south direction, in which direction will its magn

Summer Holiday Homework: Class 10 Science Physics  Very Short Answer Questions: 1. A battery is connected to a conductor. The end A is connected to the positive terminal and the end B to the negative terminal. What is the direction of the flow of electrons in the wire? 2. Define resistance of a conductor. What is its SI unit? 3. Define the unit  ohm!. 4. Distinguish between an open and a closed electric circuit. 5. Explain the meaning of the statement $potential difference between two points is 5 volt& 6. Give one example of a decomposition reaction which is carried out with electricity. 7. Give one example of a thermal decomposition reaction. 8. Give one example of an exothermic reaction and one of an endothermic reaction. 9. Give one example of an oxidation-reduction reaction which is also a combination reaction. 10. Give one example of an oxidation-reduction reaction which is also a displacement reaction. 11. How does the heat produce by a current pa

Chairman SDV Pankaj Jee The Sadhana Devi Vidyapith is located at Punjabi Colony, Dharampur Nistama.  The school was established in year 2000. It is a Co-educational school and offers education in English medium,running under the aegis of Sadhana Devi Memorial Seva Sansthan, Samastipur. Sadhana Devi Vidyapith is a school providing quality education to the student under the guidance of experienced teachers and a very well organized trust handle the all working, so that your kids can get the best. We are an affiliated school from C.B.S.E. till standard 10th. School Name: Sadhana Devi Vidyapith Affiliation Number: 330386 Type of Affiliation: Provisional Affiliation Period From: 1/4/2012 Affilation Period To: 31/3/2015 State: Bihar District: Samastipur Pin Code: 848101 Office Phone No: 06274-225126