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All Flashcards
How do you calculate power using current and voltage?
Use the formula: , where P is power, I is current, and V is voltage.
How do you calculate power using current and resistance?
Use the formula: , where P is power, I is current, and R is resistance.
How do you calculate power using voltage and resistance?
Use the formula: , where P is power, V is voltage, and R is resistance.
How do you calculate energy consumption given power and time?
Use the formula: , where E is energy, P is power, and t is time.
What is the first step to solve power related problems?
Identify the known variables (Voltage, Current, Resistance) and choose the appropriate formula.
How do you calculate power given current and voltage?
Use the formula: , where P is power, I is current, and V is voltage.
How do you calculate power given current and resistance?
Use the formula: , where P is power, I is current, and R is resistance.
How do you calculate power given voltage and resistance?
Use the formula: , where P is power, V is voltage, and R is resistance.
How do you calculate energy consumption given power and time?
Use the formula: , where E is energy, P is power, and t is time.
What is the first step in solving a power problem?
Identify what variables are given (current, voltage, resistance, time) and what variable you are trying to find (power, energy).
In a circuit diagram, what does a resistor look like?
A zig-zag line.
In a circuit diagram, what symbol represents a voltage source?
A long line and a short line parallel to each other.