**RLC Circuit MCQ with explanation**

**1.** In a series, RLC circuit containing resistance, inductance, and capacitance the total reactance is ______ either individual reactance

- Greater than
- Less than
- Equal to
- None of the above

**2. ** In a series RLC circuit when the capacitive reactance is equal to Inductive Reactance then the total reactance is

- Zero
- Unity
- Greater than one
- Less than one

**3. **Resonance is a condition in a series RLC circuit in which the capacitive and inductive reactances are _______ magnitudes.

- Greater than
- Lesser than
- Equal in
- None of the above

**4. **If the value of C in a series RLC circuit is decreased, the resonant frequency _______

- Becomes twice
- Remain same
- Decrease
- Increase

**5.** A certain series resonant circuit has a bandwidth of 2 kHz. If the existing coil is replaced with one having a higher value of Q, the bandwidth will

- Decrease
- Increase
- Remain same
- None of the above

**Ques.6.** A 6.8 kΩ resistor, a 7 mH coil, and a 0.02 µF capacitor are in parallel across a 17 kHz ac source. The coil’s internal resistance, R_{W}, is 30 Ω. The equivalent parallel resistance, R_{p}(eq), is

- 1,878 Ω
**18,780 Ω**- 1.8780 Ω
- 18.780 Ω

**7.** The magnitude of the total reactance in the series circuit is

- X
_{tot}= |X_{L}+ X_{C}| - X
_{tot}= 2|X_{L}+ X_{C}| - X
_{tot}= |X_{L}− X_{C}| - X
_{tot}= 2|X_{L}− X_{C}|

**8.** In a series RLC circuit when inductive reactance is greater than capacitive reactance (X_{L} > X_{C}) the circuit is predominantly

- Capacitive in nature
- Inductive in nature
- Resistive in nature
- Impedance in nature

**9.** In a series RLC circuit when Capacitive reactance is greater than inductive reactance (X_{C} > X_{L}) the circuit is predominantly

- Capacitive in nature
- Inductive in nature
- Resistive in nature
- Impedance in nature

**10.** The impedance of series RLC circuit in rectangular form is given as

- Z = R −( jX
_{L}− JX_{C}) - Z = R +( jX
_{L}+ JX_{C}) - Z = R −( jX
_{L}+ JX_{C}) - Z = R +( jX
_{L}− JX_{C})