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commencer à apprendre

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question		réponse
How does a battery work? commencer à apprendre		A battery creates a difference in charge and makes electrons flow, which produces electric current.
Why does the toaster get hot but not the cable? commencer à apprendre		The toaster has high resistance, which converts electrical energy into heat. The cable has low resistance, so it does not heat up.
Why does a balloon stick to the wall? commencer à apprendre		When rubbed, the balloon gains electrons and becomes negatively charged. It attracts positive charges in the wall, so it sticks.
What is voltage (spänning)? commencer à apprendre		Voltage is the difference in charge between two points that causes current to flow.
What is resistance (resistans)? commencer à apprendre		Resistance is the opposition to the flow of electric current.
What is current (strömstyrka)? commencer à apprendre		Current is the amount of electric charge flowing through a circuit over time.
🔗 What is a series koppling(serie koppling)? commencer à apprendre		A series koppling is when components are connected in a single path. If one part breaks, the whole circuit stops working.
🔀 What is a parallel koppling (parallel koppling)? commencer à apprendre		A parallel kopling has multiple paths for current. If one part breaks, the others still work.
💡 How to connect 3 batteries for the strongest light? commencer à apprendre		Connect them in series (positive to negative) to increase voltage and make the light brighter.
⚛️ Which part of the atom is negative? commencer à apprendre		The electron is negatively charged.
What happens during lightning? commencer à apprendre		Charges build up in clouds, and when the difference becomes large, a sudden electrical discharge occurs — lightning.
What are conductors (ledare)? commencer à apprendre		Conductors are materials that allow electricity to flow easily because electrons can move freely
What are insulators (isolatorer)? commencer à apprendre		Isulators are materials that do not allow electricity to flow because electrons cannot move freely.

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