What is the current when t=0?hotstuff said:hi okay i have a question, it is an old test question so it would be nice is someone ans b4 8am cos that is when the test it but if not that is fine just incase someone is surfing this website at this time.. ha.n e ways the question is a 25mH inductor is connected in series with a 20ohm resisto thru a 15v power supply and a swiitch. if the switch is closed at t= 0 what is the current at t = 7 the ans is 750 but do not know how was derived. thks.
An inductor is a passive electronic component that is designed to store energy in the form of a magnetic field. It is typically made of a coil of wire and is used in circuits to control the flow of current.
When current flows through an inductor, it creates a magnetic field around the coil. This magnetic field stores energy, which is released when the current stops flowing. This property allows inductors to resist changes in current flow and can be used to smooth out fluctuations in a circuit.
Inductance is measured in units called henries (H). A henry is equivalent to one volt-second per ampere.
The current in a 25mH inductor circuit can vary depending on the circuit components and the voltage applied. However, the current through an inductor is typically proportional to the rate of change of the applied voltage.
To calculate the current in a 25mH inductor circuit, you will need to know the voltage applied, the inductance of the inductor, and the resistance of any other circuit components. You can then use Ohm's law and the formula for calculating inductive reactance to determine the current.