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an open circuit.
5 amps
Magnetic fields do, because there's no such thing as an isolated magnetic "pole",
and a magnetic line always starts and ends at opposite poles of the same
magnetized object.
But electric fields don't. You can easily have a bundle of isolated positive charge
over here and a bundle of isolated negative charge over there, whereupon the
lines of the electric field start on one bundle and end on the other bundle.
But electric field lines can also exist in closed loops, and they do that in radio waves, where the electromagnetic field propagates with an electric field component and a magnetic field component, and they both form closed loops.
false
electromagnetic
- More coils of wire around the magnetic material.
- More current through the wire in the coil.
Increasing the current flowing through the wire
Increasing the number of loops of wire
putting a piece of iron inside the loops of wire apex :)
Increasing the current flowing through the wire
Increasing the number of loops of wire
an insulator
voltage
A voltage source of 120 V will supply a current of 6 Ainto a load of 20 ohms.
Ohm's law: Voltage equals current times resistance.
The alternate question, 10 ohm heater running on 120 V, was split from this question because it was not the same question.
Protons are smaller than atoms; in fact, protons are located within atoms.
Most great discoveries started out as accidental. The discoverer usually wondered why something happened and began investigating and experimenting to learn about it.
With less electric charge there is also less electric force.
ab electric field and a magnetic field r-ob marcum - apex
Stay in the car. If you need to leave the car (it's on fire) you should leap from the car in such a way that you do not touch the car and the ground at the same time. Of course, you should also avoid stepping on the power line.
If the pavement is wet, you should keep your feet close together or hop on one foot away from the downed line so as not to create an electrical potential between your feet.
There is no circuit shown in your question. It is not possible for us to see your homework paper and answer this question.
