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Class 10 Magnetic effects of current - Worksheet 1




One marks questions

Question 1 How can you show that the magnetic field produced by a given electric current in the wire decreases as the distance from the wire increases?

Question 2 What is the advantage of the third wire of earth connection in domestic appliances?

Question 3 How is the strength of the magnetic field at a point near a wire related to the strength of the electric current flowing in the wire?

Question 4 On what effect of an electric current does an electromagnet work?

Two marks questions

Question 5. With the help of a neat-diagram, describe how you can generate induced current in a circuit.
Question 6 Explain terms: (a) overloading and (b) short-circuiting

Question 7 List in tabular form two major differences between electric motor and electric generator.

Question 8 Explain the function of earth wire. Why is it necessary to earth metallic appliances?
Question 9 All household appliances are connected in parallel. List two advantages of this type of arrangement.



Three marks questions

Question 10 Explain briefly two different ways to induce current in a coil. State the rule which determines direction of induced current.
Question 11 (a) A stationary charge is placed in a magnetic field. Will it experience force? Give reason and justify your answer.
(b) On what factors does the direction of force experienced by a current carrying conductor when placed in a magnetic field depends?
(c)  Under what conditions is the force experienced by a current carrying conductor placed in a uniform magnetic field is maximum.

Question 12 List four important features of domestic electric circuit. Draw a diagram of common domestic circuit showing live, neutral and earth wires.

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Class 10 Maths Class 10 Science