Power dissipation in a resistor We've seen that P = VI for any component in a circuit. We also have Ohm's Law, which is a property that applies to resistors, V = IR. Sometimes we may be given the voltage across a resistor and want to quickly calculate the power dissipated, other times we may be given the current and want to calculate the power quickly. Derive a function of V and R that gives the power dissipation of a resistor. Show your work. Derive a function of I and R that gives the power dissipation of a resistor. Show your work. P(V, R) = ? P(I, R) = ?

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Power dissipation in a resistor
We've seen that P = VI for any component in a circuit. We also have Ohm's Law, which is a property that
applies to resistors, V = IR. Sometimes we may be given the voltage across a resistor and want to quickly
calculate the power dissipated, other times we may be given the current and want to calculate the
power quickly.
Derive a function of V and R that gives the power dissipation of a resistor. Show your work.
Derive a function of I and R that gives the power dissipation of a resistor. Show your work.
P(V, R) = ?
P(I, R) = ?
Transcribed Image Text:Power dissipation in a resistor We've seen that P = VI for any component in a circuit. We also have Ohm's Law, which is a property that applies to resistors, V = IR. Sometimes we may be given the voltage across a resistor and want to quickly calculate the power dissipated, other times we may be given the current and want to calculate the power quickly. Derive a function of V and R that gives the power dissipation of a resistor. Show your work. Derive a function of I and R that gives the power dissipation of a resistor. Show your work. P(V, R) = ? P(I, R) = ?
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