Class 10th Assignment (Magnetic Effect of Current) - PDF

D.A.V Sreshtha Vihar, Public School, Delhi-110092 Class 10th Assignment (Magnetic effect of current) Multiple Choice Questions: 1. When a straight conductor is carrying current: a) There are concentric circular magnetic field lines around it b) There are magnetic field lines p...

D.A.V Sreshtha Vihar, Public School, Delhi-110092 Class 10th Assignment (Magnetic effect of current) Multiple Choice Questions: 1. When a straight conductor is carrying current: a) There are concentric circular magnetic field lines around it b) There are magnetic field lines parallel to the conductor c) There are no magnetic field lines d) None of the above 2. Which rule helps to determine the magnetic field lines around a current carrying straight wire: a) Fleming’s left-hand rule b) Fleming’s left-hand rule c) Right hand thumb rule d) Left hand thumb rule 3. Which rule helps to determine the direction of force experience by a current carrying wire placed in uniform magnetic field: a) Fleming’s left-hand rule b) Fleming’s left-hand rule c) Right hand thumb rule d) Left hand thumb rule 4. Purpose of earth wire in household circuits Is to a) Prevent from contact between live and neutral wire b) Prevent from overloading c) Prevent from electric shock due to leakage current d) Control undue amount of current 5. Magnetic field strength inside a solenoid can be increased by: a) Increasing the current b) Increasing number of turns c) Both a and b d) Neither a nor b 6. Write any three properties of magnetic field lines. 7. Draw magnetic field lines for given electromagnets: a. A straight wire b. A circular loop c. A solenoid 8. Define: a. Right Hand Thumb Rule b. Fleming’s Left Hand Rule 9. What do you mean by: a. Earthing b. Overloading c. Short circuit 10. Mention any two advantages of using parallel combinations in household circuits.