What is Ohm’s Law?
Ohm's Law defines the relationship between voltage, current, and resistance in an electrical circuit.
Which unit is used to measure electrical resistance?
Electrical resistance is measured in ohms, symbolized by the Greek letter omega (Ω).
What does a capacitor do in an electrical circuit?
A capacitor stores and releases electrical energy by accumulating an electric charge.
What is the function of a transformer?
A transformer changes the voltage level in an alternating current (AC) circuit.
Which component opposes changes in current flow?
An inductor opposes changes in current by generating a magnetic field.
What type of current reverses direction periodically?
Alternating current (AC) reverses its direction periodically.
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Which formula calculates electrical power?
Electrical power is calculated as voltage multiplied by current.
What safety device protects a circuit from overload?
A circuit breaker protects electrical circuits by interrupting the flow in case of an overload.
What is the unit of electrical current?
Electrical current is measured in amperes (amps), representing the flow of electric charge.