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Impedance (Z) is the vector sum of a circuit's resistance (R) and reactance(X), is expressed in ohms, and is the total opposition to current in an a.c. circuit.
Resistance, expressed in ohms, depends upon the length, cross-sectional area, and resistivity of the conductor.
Reactance, expressed in ohms, can be inductive reactance (XL), capacitive reactance(XC), or a combination (vector sum) of the two.
- Inductive reactance is directly proportional to the circuit's inductance and the supply frequency.
- Capacitive reactance is inversely proportional to the circuit's capacitance and the supply frequency.
What else can I help you with?
What Purpose of electrical symbol?
Electrical symbols are used in electrical wiring diagram, signage on the electrical devices and motors
What do you mean by electrical engineer practitioner?
One who practises the profession of electrical engineering. An electrical engineer.
Does blu-tack break an electrical circuit?
No, an electrical approved switch is used to break an electrical circuit.
Pictures of electrical energy?
no picture of electrical energy
Define Mechanical Electrical and Plumbing Engineer?
Mechanical and Electrical
Why output impedence is high in opamp?
Output impedance in an op-amp is not high - it is low - input impendance is high, and this is because the input stage transistors have high gain.
Why should high-impendance meters be used on modern vehicles?
High impedance meters should be used in modern vehicles due to the vast array of circuitry they consist of. Modern cars and trucks have sensors that just about control everything.
What are the different electrical systems?
Electrical, bi-electrical and homo-electrical. There is also dyno-saur-electrical which you should ask your mum or dad.
Is electrical an adjective?
Yes, both electric and electrical are adjectives, with electrical applying exclusively to electricity.Examples are electrical engineering, electrical tape, and electrical outlet.
What are electrical machines and electrical drives?
machine is an electrical device
What is meant by electrical?
Electrical
What is a electrical energy?
electrical
Electrical?
Electrical Safety
What Purpose of electrical symbol?
Electrical symbols are used in electrical wiring diagram, signage on the electrical devices and motors
Who is city electrical factors nearest competitor?
Wilts Electrical Wholesalers. Edmundson Electrical. Source: I work for City Electrical
What is an electrical plan?
electrical plan
What is an electrical jellyfish?
Jellyfishes are not electrical.
