Joule’s law allows us to compute the power in a simple electric circuit: P=I2R. (a) Use the equation above to find an equation relating dP dt , dI dt , dR dt , I and R. (b) I have a circuit with a 400 Ω resistor. I increase the voltage at 20 Volts/s. When the voltage reaches 350 Volts, how quickly is the Power in the circuit increasing? Include units in your answer. Note that 1 Watt is equivalent to 1 Volt2/Ω. Hint: you will need to use another equation relating voltage to current from the activity in class.
Ohm's law
Ohm’s law is a prominent concept in physics and electronics. It gives the relation between the current and the voltage. It is used to analyze and construct electrical circuits. Ohm's law states that the voltage across a conductor is directly proportional to the current flowing through it.
Path of Least Resistance
In a series of alternate pathways, the direction of least resistance is the actual or metaphorical route that offers the least resistance to forwarding motion by a given individual or body.
Joule’s law allows us to compute the power in a simple electric circuit: P=I2R.
(a) Use the equation above to find an equation relating dP dt , dI dt , dR dt , I and R.
(b) I have a circuit with a 400 Ω resistor. I increase the voltage at 20 Volts/s. When the voltage reaches 350 Volts, how quickly is the Power in the circuit increasing? Include units in your answer. Note that 1 Watt is equivalent to 1 Volt2/Ω. Hint: you will need to use another equation relating voltage to current from the activity in class.
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