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

Question-1
Which of the following is used to increase or decrease the amplitude of alternating current?

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

Question-2
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-3
The materials which are attracted by magnets are called

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

Question-4
Which of the following galvanometer has very high sensitivity?

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

Question-5
Removal of the property of magnetization is called

(A) Magnetization	(B) Electromagnetic induction
(C) Demagnetization	(D) Paramagnetism

Question-6
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-7
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-8
Which of the following converts mechanical energy to electrical energy?

(A) Electric bell	(B) Electric heater
(C) Generator	(D) Electric iron

Question-9
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-10
Which of the following is used to measure the current in a circuit ?

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

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Cambridge Secondary Grade 10

IGCSE

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