IGCSE Cambridge Secondary Grade 10 Study Materials, Online Learning, Question Papers, Classnotes, Practice Test, MCQ | Smartindia Educational Program : www.smartindia.net.in

Question-1
The speed of the motor can be increased by increasing

(A) Magnetic strength	(B) Current
(C) Number of turns in the coil	(D) All the above

Question-2
Which of the following statement is true?

(A) The magnetism induced in iron and steel is temporary	(B) The magnetism induced in iron and steel is permanent
(C) The magnetism induced in iron is permanent while in steel is temporary	(D) The magnetism induced in iron is temporary while in steel is permanent

Question-3
A device is used to transform 12 V d.c. to 200 V a.c.What is the name of the device?

(A) Step-up transformer	(B) Step-down transformer
(C) Generator	(D) Moving coil galvanometer

Question-4
Which of the following is used to increase a.c potential?

(A) A.C generator	(B) D.C generator
(C) Step-up transformer	(D) Step-down transformers

Question-5
Which of the following is used to increase or decrease the amplitude of alternating current?

(A) Transformer	(B) Generator
(C) Electromagnets	(D) Galvanometer

Question-6
Which of the following is used to decrease a.c potential?

(A) A.C generator	(B) D.C generator
(C) Step-up transformer	(D) Step-down transformer

Question-7
The strength of an electromagnet increases if

(A) The current in the coil increases	(B) The number of turns in the coil increases
(C) the poles are moved close together	(D) All the above

Question-8
Which of the following gives the presence and direction of flow of current in any circuit?

(A) Ammeter	(B) Galvanometer
(C) Voltmeter	(D) Rheostat

Question-9
The materials which are attracted by magnets are called

(A) Ferromagnetic	(B) Paramagnetic
(C) Bar magnets	(D) Electromagnets

Question-10
Which of the following is most commonly used galvanometer?

(A) Pivoted type galvanometer	(B) Suspended type galvanometer
(C) Moving coil galvanometer	(D) All the above

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Cambridge Secondary Grade 10

IGCSE

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