In RLC series circuit at resonance, the A.C voltage across Resistance R, Inductance L and capacitance C are 5V, 10V and 10 V respectively. The A.C voltage applied to the circuit will be:
Correct answer: C. 5 V
- A. 20 V
- B. 10 V
- C. 5 V
- D. 25 V
Explanation
Let V1, V2 and V3 be the voltage across Resistance, Inductance and Capacitance. Then Source Voltage (V) may be written as:
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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.
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