Electricity Flashcards

1
Q

What is the unit of Current?

A

A ampere

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2
Q

What is the unit of Charge?

A

C coulomb

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3
Q

What is the unit of Energy?

A

J joules

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4
Q

What is Ω for?

A

ohm resistant

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5
Q

What is the relationship between power, current and voltage? (full word formula)

A

power = current x voltage

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6
Q

What is current?

A

The rate if flow of charge round the circuit.

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7
Q

What does electrons do?

A

Carry the charge.

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8
Q

What is voltage?

A

What drives the current round the circuit.

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9
Q

What is resistance?

A

Anything in the circuit that slows the flow of charge

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10
Q

What is the relationship between voltage and resistance?

A

The voltage is pushing the the current around the circuit while resistacne is opposing it.

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11
Q

If you ______ the voltage, the more current will flow.

A

increase

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12
Q

If you increase the resistance , the _____ current will flow.

A

less

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13
Q

What is the difference between sries circuit and parallel circuit? (components)(current)

A

In series circuit, components are connected in a line while in parallel circuit they are seperate. If you remove one component from the sries circuitm, the circuit will break down but if you do the same to the parallel circuit, it won’t.

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14
Q

What is the relationship between charge, current and time? (full words formula)

A

charge = current x time

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15
Q

What is the relationship between energy transferred, charge and voltage?

A

energy transferred = charge x voltage

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16
Q

What is the relationship between energy transferred, charge, current and resistance?

A

energy transferred = charge x current x resistance

17
Q

resistance decrease—-> voltage and current will x

A

x= increase

18
Q

resistance decrease—-> light bulb will x

A

x= lighter

19
Q

voltage = current x ?

A

?= resistance

20
Q

when more charge passes around a circuit, a ___current flow

A

bigger

21
Q

if the circuit is parallel, the voltage is ___

A

same

22
Q

what does resistance measure

A

measure how difficult the current flows

23
Q

what is this—–(X)——-

A

light bulb

24
Q

what is this——-(A)——

A

ammeter

25
Q

what is this——(V)——

A

voltmeter