Alternating current is converted to direct current by:
Correct answer: D. Rectifier
- A. Dynamo
- B. Motor
- C. Transformer
- D. Rectifier
Explanation
"Rectifier," is a device that converts alternating current (AC) to direct current (DC) by allowing current to flow in only one direction. This process is essential for many electronic devices that require DC power to operate.
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About Alternating Current
Alternating current varies periodically, so phase relationships become essential when current passes through a resistor, capacitor or inductor. The chapter distinguishes resistance from capacitive and inductive reactance, explains phase lead and lag, and connects changing electric and magnetic fields with the production and properties of electromagnetic waves.
Practise Alternating Current
592 free Alternating Current MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.
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