Class 7 Science MCQs - Chapter 6
Electrical Circuits and Electric Currents Trivia Questions & Answers PDF Download - 48
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Electrical Circuits and Electric Currents Test Questions and Answers PDF Download: MCQ 48
The bulb glows because the filament is
- negatively charged
- heated up
- positively charged
- cooled down
One method of making a strong electromagnet is to increase
- voltage in coil
- resistance in coil
- number of turns in coil
- the size of iron bar
Small magnets are also used in
- dynamos
- plugs
- resistors
- fuses
When the current flows one way, the magnet forces push the electromagnet and cone
- inwards
- forwards
- backwards
- outwards
The larger the current, the greater the number of
- volts
- amperes
- pascal
- ohms
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Grade 8 Science MCQ with Answers
- Water in freezing form may break rocks in to pieces by force of
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- Compounds which are needed in very small amount but their deficiency lead to scurvy and rickets are
Electrical Circuits and Electric Currents MCQ Book Questions
- As compare to air, sound travels faster in
- A force which occurs when two surfaces come in contact and slows down motion while acting in
- Formula that shows number and kind of atoms which a substance of a molecule contained, is known as
- Movement of particles from an area of higher concentration to an area of lower concentration is called
- Electrolyte used in purification of copper is