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Physics

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Betty Tromp

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Cards in this guide (10)
Which is true of magnetic field lines but not electric field lines

they show wich way iron shavings would align themselves

They always make closed loops.

Electric field lines can either form closed loops or they can start and finish on isolated electric charges. Magnetic field lines always only form closed loops.

Which converts mechanical energy to electrical energy

a generator

How is the wiring done in houses and other occupied buildings

It is in parallel, so one light can be on while others are turned off.

Which number is written using standard scientific notation

3.47 x 10 -7

4.1 x 10 to the second power

In a circuit the voltage is the same across all branches

Parallel

Any magnetic properties occur

at the atomic level because of the movement of electrons

An electric clothes dryer has a resistance of 8 ohms It draws 30 A of current What is the voltage in volts of the wall outlet that it is plugged into

240

What type of fields are created by an arrangement of electric charges or a current

Magnetic fields can be created by charges or the flow of current.

What will be attracted to or repelled by an magnet

a copper wire carrying current and another magnet.

In terms of the scientific definition of work magnetic fields can do work but electric fields cannot true or false

false

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