Class 7 Online Courses

Chapter 7: Class 7 Science Exam Tests

Class 7 Science MCQs - Chapter 7

Electrical Circuits and Electric Currents Multiple Choice Questions PDF Download - 53

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Electrical Circuits and Electric Currents Questions & Answers PDF Download: MCQ Quiz 53

MCQ 261: The loudspeaker changes the electric signals into

A) light waves and heat
B) heat and sound waves
C) sound waves
D) heat energy

MCQ 262: Earth wire is a wire that

A) is used to earth excess current
B) insulates excess current
C) diffuses excess current
D) recharges voltage

MCQ 263: The wire coil is wound round the neck of a

A) paper cone
B) magnet
C) bass tube
D) mechanical magnet

MCQ 264: One of the causes of overloading is

A) long circuit
B) short circuit
C) overloaded cables
D) heavy circuit

MCQ 265: Sometimes, bulb does not light up even if the circuit is complete because the

A) energy is low
B) power is low
C) resistance is high
D) electric charges are insufficient

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Electrical Circuits and Electric Currents App (Android & iOS)

Electrical Circuits and Electric Currents App (Android & iOS)

7th Grade Science App (Android & iOS)

7th Grade Science App (Android & iOS)

6th Grade Science App (Android & iOS)

6th Grade Science App (Android & iOS)

8th Grade Science App (Android & iOS)

8th Grade Science App (Android & iOS)