terms and their units. Flashcards

1
Q

What is the formula for voltage?

A

V= E/Q

Where:

V = Voltage (volts, V)

E = Energy (joules, J)

Q = Charge (coulombs, C)

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2
Q

What do the terms in
V=E/Q
mean

A

Voltage (V): The energy per unit charge, or the potential difference between two points.

Energy (E): The total energy (in joules) available to move charges.

Charge (Q): The amount of electric charge (in coulombs, C).

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3
Q

hat is the formula for electrical power?

A

P=IV

Where:

P = Power (watts, W)

I = Current (amperes, A)

V = Voltage (volts, V)

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4
Q

What do the terms in
P=IV
Mean

A

Power (P): The rate at which energy is transferred or used (in watts).

Current (I): The flow of charge per unit time (in amperes).

Voltage (V): The potential difference or energy per unit charge (in volts).

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5
Q

What is another formula for power in terms of energy and time

A

P=E/T

Where:

P = Power (watts, W)

E = Energy (joules, J)

t = Time (seconds, s)

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