The energy stored in a capacitor can be expressed in three ways: Ecap=QV2=CV22=Q22C E cap = QV 2 = CV 2 2 = Q 2 2 C , where Q is the charge, V is the voltage, and C is the capacitance of the capacitor. The energy is in joules when the charge is in coulombs, voltage is in volts, and capacitance is in farads.
Q. Which equations are used to express magnetic field energy in an inductor?
The formula for the energy stored in a magnetic field is E = 1/2 LI2. The energy stored in a magnetic field is equal to the work needed to produce a current through the inductor.
Table of Contents
- Q. Which equations are used to express magnetic field energy in an inductor?
- Q. Is an LL CC circuit a conservative system?
- Q. How the energy stored in an inductor will vary if the number of turns is doubled?
- Q. What units are used to measure voltage?
- Q. What are the three basic units to measure electricity?
- Q. What is the difference between current and voltage besides their units of measurement?
- Q. What is the best way in which voltage and current work together?
- Q. What is the similarities between current and charge?
- Q. How do voltage and current work together?
Q. Is an LL CC circuit a conservative system?
1. An L-C circuit is a conservative system—there is no resistance to dissipate energy. The energy oscillates between electrical energy in the capacitor and magnetic energy stored in the inductor.
Q. How the energy stored in an inductor will vary if the number of turns is doubled?
So, when the current is doubled, the energy stored in the inductor will become 4 times.
Q. What units are used to measure voltage?
Voltage is measured in the unit of the volt (V). Current is measured in the unit of the ampere, or amp (A). Resistance is measured in the unit of the ohm (Ω).
Q. What are the three basic units to measure electricity?
The basic units of measurement for electricity are current, voltage and resistance.
Q. What is the difference between current and voltage besides their units of measurement?
Explanation: As I understand it: current is an indicator of the amount of electrons passing a point in in the circuit. Whilst voltage could be used as the potential energy that can move the current. The voltage is a measurement of the difference of potential.
Q. What is the best way in which voltage and current work together?
Ohm’s law defines the relationship between the voltage, current, and resistance in an electric circuit: i = v/r. The current is directly proportional to the voltage and inversely proportional to the resistance.
Q. What is the similarities between current and charge?
Whereas the current is the rate of flow of charged particles called electrons. The charge experiences the force only in the electrical field, whereas the current experience the force both in the electric and magnetic field. The coulomb is the unit of electric charges, whereas the current is measured in the amperes.
Q. How do voltage and current work together?
When a voltage source is connected to a circuit, the voltage will cause a uniform flow of charge carriers through that circuit called a current. In a single (one loop) circuit, the amount of current at any point is the same as the amount of current at any other point.
