Physics

whats a fuse?

• an electrical safety device that provides over-current protection to the functional electrical circuit.

• a device that is harmful.

• a round-shaped figure that has no corners or edges.

• a device that helps you from getting short circuits.

Can monopoles happen?

• YES!

• NO!

which one is for a ferromagnet?

• 
• 

why is a closed loop important?

• because without the closed loop it would not work.

• its a trick question, doesnt matter.

• so the current can move freely.

• so the voltage can move freely.

whats this?

• solenoid.

• a fuse.

• a ground fault interrupter.

• a circuit beaker.

according to the right hand rule...the thumb indicates?

• your north pole.

• your south pole.

Three different bulbs (bulb 1, bulb 2, bulb3), have the resistance, in order (R1=3Ω, R2=5Ω, R3=2Ω), are connected in parallel as shown in the figure, which bulb has the best brightness?

• bulb 1

• bulb 2

• bulb 3

what type of circuits are in our homes?

• parallel

• series

• a combo of both

whats better?

• fuse

• circuit beaker

Ammeters internal resistance is?

• parallel and high resistance

• parallel and low resistance

• series and low resistance

• series and high resistance