This is a switch that automatically opens if the current is too high.
What is a circuit breaker?
100
This is represented by the following formula: Voltage = Current x Resistance or V=IR.
What is Ohm's Law?
100
When all lights go out on the Christmas tree lights after taking out a bulb.
What is a series circuit?
100
This is what it is called with 2 magnets' north poles are facing each other.
What is "repulsion"? They repel each other.
100
A magnet is useful in generating electricity because a magnetic force moves this.
What are electrons?
200
This device will protect you from electrical fires.
What is a circuit breaker or a fuse or a ground fault circuit interrupter?
200
This is the current found through a 12-Ohm resistive circuit when 24 volts are applied.
What is 2 amperes?
Solution: I=E/R = 24/12 = 2 amperes
200
Turning off the light switch in the bathroom and the lights in the connecting hallway remain on.
What is a parallel circuit?
200
This is what it is called when one magnet's north pole is facing another magnet's south pole.
What is "attraction"? Opposite poles on magnets are attracted to each other.
200
This object (machine) is created when you wrap a copper wire around a nail and connect each end of the wire the terminals of a battery.
What is an electromagnet?
300
This is what it is called when a circuit does not have energy flowing through it.
What is an open circuit?
300
This is the resistance of a circuit that draws 0.06 amperes with 12 volts applied.
What is 200 Ohms?
Solution: R = E/I = 12/0.06 = 200 Ohms
300
In this type of circuit, the current through each load is the same, and the total voltage across the circuit is the sum of the voltages across each load.
What is a series circuit.
300
This determines whether a material is magnetic or not.
What is the material's atoms? The atoms/domains of the material needs to be aligned for it to be magnetic.
300
This happens when you increase the number of coils around the nail in an electromagnet and try to pick up paper clips.
What is an increase in magnetism? It will pick up more paper clips.
400
This is what it is called when a circuit does have energy flowing though it.
What is a closed circuit.
400
This is the applied voltage of a circuit that draws 0.2 amperes through a 4800-Ohm resistance.
What is 960 volts?
Solution: E = IR = 0.2 x 4800 = 960 volts
400
In this circuit, each load is connected in a separate path receives the full circuit voltage, and the total circuit current is equal to the sum of the individual branch currents.
What is a parallel circuit?
400
This is what you can make visible by sprinkling iron filings around a magnet.
What are the magnetic field lines?
400
This happens when you place a magnet in a coil of wire.
What is creates electricity?
500
These are the 3 parts of an electric circuit.
What are the wires, load, and energy source?
500
This is the applied voltage of a telephone circuit that draws 0.017 amperes through a resistance of 15,000 Ohms.
What is 255 volts?
Solution: E = IR = .017 x 15000 = 255 volts
500
Homes are usually wired using this type of circuit.
What are parallel circuits?
500
This is created by a charged particle that is moving.
What is a magnetic field?
500
This happens when you move a magnet faster (back and forth) in a coil of wire.