Question: If the resistance of a tuned circuit is increased, the Q of the circuit _______________?

• 1. Is increased
• 2. Is decreased
• 3. Remains the same
• 4. None of the above

Question: At series resonance, the phase angle between applied voltage and circuit is______________?

• 1. 90o
• 2. 180o
• 3. 0o
• 4. None of the above

Question: The dimensions of L/CR are that of _______________?

• 1. Farad
• 2. Henry
• 3. Ohm
• 4. None of the above

Question: The Q of an LC circuit is given by _________________?

• 1. 2pfr x R
• 2. R / 2pfrL
• 3. 2pfrL / R
• 4. R2/2pfrL

Question: In parallel resonance, the circuit impedance is_________________?

• 1. C/LR
• 2. R/LC
• 3. CR/L
• 4. L/CR

Question: When either L or C is increased, the resonant frequency of LC circuit ____________?

• 1. Remains the same
• 2. Increases
• 3. Decreases
• 4. Insufficient data

Question: If Q of an LC circuit increases, then bandwidth ______________?

• 1. Increases
• 2. Decreases
• 3. Remains the same
• 4. Insufficient data

Question: In a parallel LC circuit, if the input signal frequency is increased above resonant frequency then _______________?

• 1. XL increases and XC decreases
• 2. XL decreases and XC increases
• 3. Both XL and XC increase
• 4. Both XL and XC decrease

Question: At parallel resonance, the net reactive component circuit current is _______________?

• 1. Capacitive
• 2. Zero
• 3. Inductive
• 4. None of the above

Question: A resonant circuit contains ____________elements?

• 1. R and L only
• 2. R and C only
• 3. Only R
• 4. L and C