Question

What are the units of electrical quantities?

Answer 1

Here’s a quick rundown of the units for various electrical quantities:

### 1. **Voltage (V)**
   - **Unit:** Volt (V)
   - **Definition:** It’s the potential difference between two points in a circuit. One volt is the potential difference that will move one coulomb of charge with one joule of energy.

### 2. **Current (I)**
   - **Unit:** Ampere (A)
   - **Definition:** It’s the rate of flow of electric charge. One ampere is the flow of one coulomb of charge per second.

### 3. **Resistance (R)**
   - **Unit:** Ohm (Ω)
   - **Definition:** It’s the opposition to the flow of current in a conductor. One ohm is the resistance that allows one ampere of current to flow with one volt of potential difference.

### 4. **Capacitance (C)**
   - **Unit:** Farad (F)
   - **Definition:** It’s the ability of a body to store an electric charge. One farad is the capacitance of a capacitor that will store one coulomb of charge when one volt is applied across it.

### 5. **Inductance (L)**
   - **Unit:** Henry (H)
   - **Definition:** It’s the property of a conductor that opposes changes in current. One henry is the inductance that will induce one volt of electromotive force when the current changes at the rate of one ampere per second.

### 6. **Power (P)**
   - **Unit:** Watt (W)
   - **Definition:** It’s the rate at which electrical energy is consumed or produced. One watt is the power when one joule of energy is used in one second.

### 7. **Energy (E)**
   - **Unit:** Joule (J)
   - **Definition:** It’s the capacity to do work. One joule is the energy used when one ampere of current flows through one ohm of resistance for one second.

### 8. **Charge (Q)**
   - **Unit:** Coulomb (C)
   - **Definition:** It’s the amount of electric charge. One coulomb is the charge transported by a current of one ampere in one second.

### 9. **Frequency (f)**
   - **Unit:** Hertz (Hz)
   - **Definition:** It’s the number of cycles per second of alternating current (AC). One hertz is one cycle per second.

### 10. **Conductance (G)**
   - **Unit:** Siemens (S)
   - **Definition:** It’s the reciprocal of resistance. One siemens is the conductance that allows a current of one ampere to flow with one volt of potential difference.

These are some of the primary electrical quantities and their units. Let me know if you'd like more detail on any of these!