Class 7 Science MCQs - Chapter 6
Electrical Circuits and Electric Currents Quiz Questions & Answers PDF Download - 27
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Electrical Circuits and Electric Currents Exam Questions and Answers PDF Download: Test 27
The volume control regulator in a CD receiver, radio and amplifier also use
- transistor
- variable resistor
- thermistor
- fixed resistor
Maglev trains float on the track because of
- friction
- energy
- electromagnetism
- mechanical repulsion
Another gas, that is used as replacement of argon is known as
- oxygen
- carbon monoxide
- nitrogen
- hydrogen
Ammeter can be connected anywhere because current is
- same in the whole circuit
- least near the bulb
- least near the cell
- greatest near the switch
1000mA of current is equal to
- 1A
- 10A
- 100A
- 0.1A
Class 7 Science Mock Tests
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