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22 Terms
What is Ohm’s Law?
V = IR
What is the power formula using voltage and current?
P = IV
What is the power formula using current and resistance?
P = I²R
What is the power formula using voltage and resistance?
P = V² / R
How do you find total resistance in a series circuit?
Rtotal = R1 + R2 + R3 + …
How do you find total voltage in a series circuit?
Vtotal = V1 + V2 + V3 + …
How do you find total current in a series circuit?
Itotal = I1 = I2 = I3 = …
What stays the same in a series circuit?
Current
What adds together in a series circuit?
Resistance and Voltage
How do you find total resistance in a parallel circuit?
1 / Rtotal = 1 / R1 + 1 / R2 + 1 / R3 + …
How do you find total voltage in a parallel circuit?
Vtotal = V1 = V2 = V3 = …
How do you find total current in a parallel circuit?
Itotal = I1 + I2 + I3 + …
What stays the same in a parallel circuit?
Voltage
What adds together in a parallel circuit?
Current
What happens to total resistance in a series circuit when more resistors are added?
Total resistance increases
What happens to total resistance in a parallel circuit when more resistors are added?
Total resistance decreases
What triangle helps remember Ohm’s Law?
The V over I and R triangle
What triangle helps remember the power formula P = IV?
The P over I and V triangle
What is the relationship between power, current, and resistance?
P = I²R
What is the relationship between power, voltage, and resistance?
P = V² / R
In a series circuit, is current shared or constant?
Constant
In a parallel circuit, is voltage shared or constant?
Constant