If the rate of change of current in an inductor is 2 A/s, what is the induced EM
Practice Questions
Q1
If the rate of change of current in an inductor is 2 A/s, what is the induced EMF if the inductance is 3 H?
6 V
3 V
2 V
1 V
Questions & Step-by-Step Solutions
If the rate of change of current in an inductor is 2 A/s, what is the induced EMF if the inductance is 3 H?
Step 1: Identify the formula for induced EMF in an inductor, which is ε = -L(dI/dt).
Step 2: Determine the values given in the question: L (inductance) = 3 H and dI/dt (rate of change of current) = 2 A/s.
Step 3: Substitute the values into the formula: ε = -3 H * 2 A/s.
Step 4: Calculate the result: -3 * 2 = -6.
Step 5: Write the final answer: The induced EMF is -6 V.
Inductance and Induced EMF – The relationship between the rate of change of current in an inductor and the induced electromotive force (EMF) is described by the formula ε = -L(dI/dt), where L is the inductance and dI/dt is the rate of change of current.
