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Chapter 13 Magnetic Effect of Current Class 10 Science NCERT Solutions

Class 10 Science NCERT Solutions Chapter 13: Magnetic Effect of Current is developed and witten by our expert teachers. Students can study our solutions of Chapter 13: Magnetic Effect of Current class 10 Science, Q. No 1: Which of the following correctly describes the magnetic field near a long straight wire? (a) The field consists of straight lines perpendicular to the wire (b) The field consists of straight lines parallel to the wire (c) The field consists of radial lines originating from the wire (d) The field consists of concentric circles centred on the wire , Q. No 2: The phenomenon of electromagnetic induction is (a) the process of charging a body (b) the process of generating magnetic field due to a current passing through a coil (c) producing induced current in a coil due to relative motion between a magnet and the coil (d) the process of rotating a coil of an electric motor, Q. No 3: The device used for producing electric current is called a (a) Generator, (b) galvanometer, (c) ammeter and (d) motor, Q. No 4: The essential difference between an AC generator and a DC generator is that (a) AC generator has an electromagnet while a DC generator has permanent magnet. (b) DC generator will generate a higher voltage. (c) AC generator will generate a higher voltage. (d) AC generator has slip rings while the DC generator has a commutator. , Q. No 5: At the time of short circuit, the current in the circuit (a) reduces substantially (b) does not change (c)

NCERT Solutions Class 10 Science
Chapter 13: Magnetic Effect of Current
Exercise Answers

=Q. No 1: Which of the following correctly describes the magnetic field near a long straight wire? (a) The field consists of straight lines perpendicular to the wire (b) The field consists of straight lines parallel to the wire (c) The field consists of radial lines originating from the wire (d) The field consists of concentric circles centred on the wire

Q. No 1: Which of the following

=Q. No 2: The phenomenon of electromagnetic induction is (a) the process of charging a body (b) the process of generating magnetic field due to a current passing through a coil (c) producing induced current in a coil due to relative motion between a magnet and the coil (d) the process of rotating a coil of an electric motor

Q. No 2: The phenomenon of

=Q. No 3: The device used for producing electric current is called a (a) Generator, (b) galvanometer, (c) ammeter and (d) motor

Q. No 3: The device used for producing

=Q. No 4: The essential difference between an AC generator and a DC generator is that (a) AC generator has an electromagnet while a DC generator has permanent magnet. (b) DC generator will generate a higher voltage. (c) AC generator will generate a higher voltage. (d) AC generator has slip rings while the DC generator has a commutator.

Q. No 4: The essential difference

=Q. No 5: At the time of short circuit, the current in the circuit (a) reduces substantially (b) does not change (c) increases heavily (d) vary continuously.

Q. No 5: At the time of short circuit,

=Q. No 6: State whether the following statements are true or false. (a) An electric motor converts mechanical energy into electrical energy. (b) An electric generator works on the principle of electromagnetic induction. (c) The field at the centre of a long circular coil carrying current will be parallel straight lines. (d) A wire with a green insulation is usually the live wire of an electric supply.

Q. No 6: State whether the following

=Q. No 7: List three sources of magnetic fields.

Q. No 7: List three sources of magnetic

=Q. No 8: How does a solenoid behave like a magnet? Can you determine the north and south poles of a current-carrying solenoid with the help of a bar magnet? Explain.

Q. No 8: How does a solenoid behave

=Q. No 9: When is the force experienced by a current-carrying conductor placed in a magnetic field largest?

Q. No 9: When is the force experienced

=Q. No 10: Imagine that you are sitting in a chamber with your back to one wall. An electron beam, moving horizontally from back wall towards the front wall, is deflected by a strong magnetic field to your right side. What is the direction of magnetic field?

Q. No 10: Imagine that you are sitting

=Q. No 11: Draw a labelled diagram of an electric motor. Explain its principle and working. What is the function of a split ring in an electric motor?

Q. No 11: Draw a labelled diagram of an

=Name some devices in which electric motors are used

Name some devices in which electric

=Q. No 13: A coil of insulated copper wire is connected to a galvanometer. What will happen if a bar magnet is (i) pushed into the coil, (ii) withdrawn from inside the coil, (iii) held stationary inside the coil?

Q. No 13: A coil of insulated copper

=Q. No 14: Two circular coils A and B are placed closed to each other. If the current in the coil A is changed, will some current be induced in the coil B? Give reason.

Q. No 14: Two circular coils A and B

=Q. No 15: State the rule to determine the direction of a (i) magnetic field produced around a straight conductor-carrying current, (ii) force experienced by a current-carrying straight conductor placed in a magnetic field which is perpendicular to it, and (iii) current induced in a coil due to its rotation in a magnetic field.

Q. No 15:  State the rule to determine

=Q. No 16: Explain the underlying principle and working of an electric generator by drawing a labelled diagram. What is the function of brushes?

Q. No 16: Explain the underlying

=Q. No 17: When does an electric short circuit occur?

Q. No 17: When does an electric short

=Q. No 18: What is the function of an earth wire? Why is it necessary to earth metallic appliances?

Q. No 18: What is the function of an

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