Class 7 Science MCQs - Chapter 6

Electrical Circuits and Electric Currents Multiple Choice Questions (MCQ) PDF Download - 18

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The Electrical circuits and electric currents Multiple Choice Questions (MCQ Quiz) with Answers PDF (Electrical Circuits and Electric Currents MCQ PDF e-Book) download Ch. 6-18 to learn Grade 7 Science Course. Study Uses of Electromagnets Multiple Choice Questions and Answers (MCQs) PDF, Electrical Circuits and Electric Currents Quiz Questions and Answers to learn online certification courses. The Electrical Circuits and Electric Currents MCQ App Download: Free educational app for uses of electromagnets, resistors, electric resistance, electrolysis, electrical safety test prep for online classes.

The MCQs: Radio, TV, CD Player and sound system have; "Electrical Circuits and Electric Currents" App (Android, iOS) with answers: Microphones; Loudspeakers; Antennas; Cathode tubes; to learn online certification courses. Practice Uses of Electromagnets MCQ Questions, download Apple e-Book (Free Sample) for free online courses.

Electrical Circuits and Electric Currents MCQs with Answers PDF Download: Quiz 18

MCQ 86:

Radio, TV, CD Player and sound system have

loudspeakers
microphones
antennas
cathode tubes

MCQ 87:

A part of an electric circuit which is used to limit the amount of electric current flowing through the circuit is known as

diode
thermistor
radiator
resistor

MCQ 88:

The slowing down of electrons depends upon

material
mass of conductor
volume of conductor
length of conductor

MCQ 89:

When water is electrolyzed, the gas collected at cathode, is

sulphur
oxygen
hydrogen
sulphur dioxide

MCQ 90:

For protection of electrical appliances

resistors can be used
fuses can be used
thick wires can be used
thin wires can be used

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