Class 10 Science Chapter 13 MCQ

Class 10 Science Chapter 13 MCQ (Multiple Choice Questions) of Magnetic Effects of Electric Current. All MCQs are important for exams as well as school tests. Practice with these objective questions to score more in your terminal exams or unit tests.

These MCQs includes almost all questions from intext questions and exercises questions. Answers and explanation of each MCQ is given along with the questions.




Class 10 Science Chapter 13 MCQ Online Test for 2021-2022

Class: 10Science
Chapter: 13Magnetic Effects of Electric Current
Contents:MCQ Online Tests with Answers

Class 10 Science Chapter 13 MCQ with Answers for 2021-2022

Class 10 Science Chapter 13 MCQ Online Test with answers are given here to provide a perfect practice to the all students of grade 10. All the answers are taken from NCERT Books for class 10 science only. There are about 75 questions divided in sets of questions. If a user need more practice, click on the button “Start a New Test” given at the end of last question.

Q1

A strong bar magnet is placed vertically above a horizontal wooden board. The magnetic lines of force will be:

[A]. Only in horizontal plane around the magnet
[B]. Only in vertical plane around the magnet
[C]. In horizontal as well as in vertical planes around the magnet
[D]. In all the planes around the magnet
Q2

The magnetic field lines:

[A]. Intersect at right angles to one another
[B]. Interest at an angle 45° to each another
[C]. Do not cross one another
[D]. Cross at an angle of 60° to one another




Q3

Consider the following statements and choose the correct one:

[A]. A magnet is an object which attracts piece of iron steel Nickel and Cobalt.
[B]. Magnetic effect of electric current means that an electric current flowing in a wire produces a magnetic field around it.
[C]. The end of a a freely suspended magnet which points towards the north direction is called the north pole of the magnet
[D]. All the above
Q4

Naveen is doing his homework which is given by his teacher. Would you help him to choose the incorrect sentences?

[A]. The production of electricity from magnetism is called electromagnetic induction.
[B]. The process of electromagnetic induction has led to the construction of a generator for producing electricity at power stations.
[C]. An ammeter is an instrument which can detect the presence of electric current in a circuit.
[D]. None of the above.




Q5

Read the following sentences carefully, and choose the correct one:

[A]. If the direction of current in the front face of a circular wire is clockwise then the direction of current in the back face of the circular wire will be anticlockwise.
[B]. The solenoid is a long coil containing a large number of close turns of insulated copper wire.
[C]. The magnetic field produced by a current carrying solenoid is similar to the magnetic field produced by a bar magnet.
[D]. All the above.
Q6

Ruchika is writing about the factors affecting the strength of an electromagnet. Choose the incorrect statements:

[A]. If we increase the number of turns in the coil, the strength of electromagnet increases.
[B]. If the current in the coil is increased, the strength of electromagnet increases.
[C]. If we reduce the length of air gap between the poles of an electromagnet, then its strength increases
[D]. The strength of an electromagnet cannot be changed by changing the numbers of turns in its coil.



Q7

Which one of the following statements is not true?

[A]. In a house circuit, lamps are used in parallel.
[B]. Switches, fuses and circuit breakers should be placed in the neutral wire
[C]. An electric iron has its earth wire connected to the metal case to prevent the user receiving a shock
[D]. When connecting a three-core cable to a 13 A three-pin plug, the red wire goes to the live pin.
Q8

Recently, in a science class test, you are asked a question where you have to say whether the statements are correct or not?

[A]. The minimum force is exerted on a current carrying conductor only when it is perpendicular to the direction of magnetic field.
[B]. The direction of force on a current carrying conductor placed in a magnetic field can also be reversed by reversing the direction of magnetic field.
[C]. No force acts on a current carrying conductor when it is parallel to the magnetic field.
[D]. None of the above



Q9

Read the following sentences carefully, and choose the correct one:

[A]. The direction of induced current can also be reversed by reversing the direction of magnetic field.
[B]. A generator uses the movement or rotation of a rectangular coil of wire between the poles of a horseshoe magnet to produce an electric current.
[C]. If a wire (in the form of a coil) is kept fixed, but a magnet is moved inside it, even then a current is produced in the coil of wire.
[D]. All the above.
Q10

Recently, in a science class test, you are asked a question where you have to say whether the statements are correct or not?

[A]. If we replace the slip rings on an AC generator by a commutator, then it will become a DC generator.
[B]. The only difference between a DC generator and AC generator is in the way the two ends of the generator coil are linked to the outer circuit.
[C]. The power house AC generators have a fixed set of coils arranged around a rotating electromagnet.
[D]. None of the above.

Who did show that electricity and magnetism are related to each other?

It was first shown by Oersted that electricity and magnetism were related phenomena.

What is magnetic field?

The region surrounding a magnet, in which the force of the magnet can be detected, is called magnetic field of the magnet.

Why do two magnetic field line not intersect?

No two field-lines are found to cross each other. If they did, it would mean that at the point of intersection, the compass needle would point towards two directions, which is not possible.

State the Fleming’s left-hand rule?

According to this rule, stretch the thumb, forefinger and middle finger of your left hand such that they are mutually perpendicular. If the first finger points in the direction of magnetic field and the second finger in the direction of current, then the thumb will point in the direction of motion or the force acting on the conductor.

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