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Easy way to remember-

Easy way to remember Ohms law-

E

-----------------

I | R

Just cover up the value you are trying to solve. If you want to solve for voltage (E) simply multiply current (I) X Resistance (R). If you want to solve for Current (I) divide voltage (E) by resistance.

If you can't remember which letter goes where, remember the word "Eagle" starts with the letter "E" so it would go high.

Place an E on top for Voltage (EMF). Place and I for Current on left of versicle line. Place an R for resistance on right side of versicle line. The horizontal line is a divider and the versicle line is a multiplier.

E=IR is the formula.

For power, use same method but replace the letters with P=IE.

Someone used voltage (E) equals current (I) times resistance (R) earlier; or E= IR. So that can tell you E/I = R or E/R = I.

Do the same thing for power; P = E times I or ......

Are there specific equations you are having trouble with?

sort of what i did replacing the E I and R with what they stand for

Someone used voltage (E) equals current (I) times resistance (R) earlier; or E= IR. So that can tell you E/I = R or E/R = I.

Do the same thing for power; P = E times I or ......

Are there specific equations you are having trouble with?

V..voltage C...Current the R is resistance so it didn't confuse me and i left it the same

this could confuse some but it got me to remember the E I and R what each stood for

E = electromotive force or voltage, not V.V..voltage

I = current in amps.C...Current

umm noE = electromotive force or voltage, not V.

I = current in amps.

Voltage in a circuit is Voltage (E) equals current (I) multiplied by resistance (R) [E=I × R].

Current in a circuit is Current (I) equals voltage (E) divided by resistance (R) [I=E ÷ R].

Resistance in a circuit is Resistance (R) equals voltage (E) divided by current (I) [R=E ÷ I].

copied right out of my study guide

E R I = Easy Rhode Island

Current (I) equals voltage (E) multiplied by resistance (R).

Current (I) equals voltage (E) divided by resistance (R).

Current (I) equals voltage (E) added to resistance (R).

Current (I) equals voltage (E) minus resistance (R).

I have trouble remembering formulas like this. thanks

This is the way I was taught it...

Engineers

---------------

In | Radio

or

E

-----

I | R

Engineers

---------------

In | Radio

or

E

-----

I | R

How much power is being used in a circuit when the voltage is 120 volts DC and the current is 2.5 amperes?

1440 watts.

300 watts

48 watts

30 watts

The equation (or one of them) for power is voltage X amperage = watts.

How much power is being used in a circuit when the voltage is 120 volts DC and the current is 2.5 amperes?

1440 watts.

300 watts

48 watts

30 watts

As in post #4, P=IE

How much power is being used in a circuit when the voltage is 120 volts DC and the current is 2.5 amperes?

1440 watts.

300 watts

48 watts

30 watts

With this question here you can eliminate 2 answers right off the bat. You will never add or subtract anything to fiqure out the answer.

Current (I) equals voltage (E) multiplied by resistance (R).

Current (I) equals voltage (E) divided by resistance (R).

Current (I) equals voltage (E) added to resistance (R).

Current (I) equals voltage (E) minus resistance (R).

I have trouble remembering formulas like this. thanks

There's an even easier way to remember. You don't have to memorize anything and risk getting it wrong. Just learn the basic equation: I equals E over R.With this question here you can eliminate 2 answers right off the bat. You will never add or subtract anything to fiqure out the answer.

Visualize an equilateral triangle and label the upper apex as E. The lower-left labeled as I; the lower right labeled as R. Then looking at the triangle and the position of the labels, I (lower-left) = E (upper)

Amp

Why does everything have to be easy??

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