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If three lamps are connected in parallel to a 6-volt battery how many volts are impressed across each lamp?

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6 years ago

Date created

Mar 1, 2020

Cards (39)

Section 1

(39 cards)

If three lamps are connected in parallel to a 6-volt battery how many volts are impressed across each lamp?

Front

6v

Back

How do protons and electrons differ in their electric charge

Front

Same magnitude but opposite charge

Back

Is an electron in a hydrogen atom the same as an electron in a uranium atom

Front

Yes all electrons are identical

Back

1.what kind of field surrounds a stationary electric charge? 2. A moving electric charge?

Front

1. An electric field 2.an magnetic field

Back

what is voltage

Front

electric "pressure" that produces electric charge

Back

Why does the total circuit resistance decrease when more device are added to a parallel circuit

Front

There are more paths for electron flow

Back

Does voltage flow through a circuit or is voltage established across a circuit

Front

Established across ,only charge flows

Back

What is electric resistance

Front

That which resists flow of charge

Back

What is a magnetic field and what is it source

Front

Altered space around a magnetic .moving electric charges

Back

What condition is necessary for the flow of heat? What analogous condition is necessary for the flow of charge?

Front

Temperature difference, voltage difference

Back

what does it mean to say that in any system the total energy stays the same

Front

energy is conserved

Back

a. if electrons are rubbed from cats fur onto a rubber rod, does the rod become positively or negatively charges? b.how about the cats fur?

Front

a. negatively charged b.positively

Back

What happens to the total circuit resistance when more devices are added to a series circuit? To a parallel circuit

Front

Increases. Decrease more paths

Back

Will the current in a lightbulb connected to 220 v be more of less than when the bulb is connected to 110 v? How much?

Front

More, for the same resistance, current will double when the voltage is doubled

Back

If one of three lamps blows out when connected in parallel what happens to the current in the other two

Front

Current continues to flow

Back

What is ohms law

Front

Current = voltage/resistanceI= v/r

Back

Identify the basic components of a speaker and explain the role of each

Front

Magnet coil of wire cone

Back

If the resistance of a circuit remains constant while the voltage across the circuit decreases to half it's former value, what change occurs in the current

Front

Drops to half

Back

Why must there be no gaps in an electric circuit for it to carry current

Front

Gaps prevent the flows of electrons

Back

What do electric charges have in common with magnetic poles?

Front

They both attract and repel

Back

What is electric current

Front

Flow of charge

Back

In which case will there be more voltage across each lamp

Front

Parallel 6v across each

Back

a.why are metals good conductors? b. why are materials such as rubber and glass good insulators?

Front

a.free electrons b. bound electrons

Back

does voltage flow through a circuit or into a circuit?

Front

through

Back

what does it mean to say that charge is conserved

Front

it is neither created nor destroyed, only transferred

Back

which method of charging involves no touching

Front

induction

Back

What is the effect on current if both the voltage and the resistance are doubled? If both are halved?

Front

Current remains the same in both cases

Back

"An electron always experiences a force in an electric field but not always in a magnetic field"

Front

Electron must be moving to experience a magnetic force

Back

A. How do like charges behave toward each other b. how do unlike charges behave toward each other

Front

A. Repel each other B. attract each other

Back

In which case will there be more current in each of three lamps if they are connected to the same battery in series or in parallel

Front

Parallel

Back

Distinguish between a series to a 60volt battery how many volts are impressed across each lamp

Front

2v

Back

which two methods of charging objects involve touching?

Front

contact and friction

Back

In a normal atom how many electrons are there compared with protons

Front

Same number no net charge

Back

when a charged object polarizes another, why is there an attraction between the objects?

Front

the oppositely charged side is a little closer

Back

what does it mean to say an object is electrically polarized?

Front

negative on one side and positive on the other

Back

Will a lamp with a thick filament draw more current or less current than a lamp with a thin filament made of the same material

Front

Thick filament has less resistance and draws more current than a thin filament connected across the same potential difference

Back

What happens to the brightness of light emitted by a light bulb when the current in it increases

Front

Increases current results in the bulb glowing brighter

Back

What is the shape of the magnetic field that surrounds a current carrying wire

Front

Concentric circles

Back

If one of three lamps blows out when connected in series what happens to the current in the other two

Front

It stops

Back