Electrical Engineering Mcqs

At series resonance, the circuit offers____________ impedance?

• (A)  Zero
• (B)  Maximum
• (C)  Minimum
• (D)  None of the above

Answer

Submitted By :Ali Uppal

A tuned amplifier is generally operated in ____________operation?

• (A)  Class A
• (B)  Class C
• (C)  Class B
• (D)  None of the above

Answer

Submitted By :Ali Uppal

At series resonance, the net reactive component of circuit current is _______________?

• (A)  Zero
• (B)  Inductive
• (C)  Capacitive
• (D)  None of the above

Answer

Submitted By :Ali Uppal

At series or parallel resonance, the circuit behaves as a ______________ load?

• (A)  Capacitive
• (B)  Resistive
• (C)  Inductive
• (D)  None of the above

Answer

Submitted By :Ali Uppal

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

• (A)  Is increased
• (B)  Is decreased
• (C)  Remains the same
• (D)  None of the above

Answer

Submitted By :Ali Uppal

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

• (A)  90o
• (B)  180o
• (C)  0o
• (D)  None of the above

Answer

Submitted By :Ali Uppal

The dimensions of L/CR are that of _______________?

• (A)  Farad
• (B)  Henry
• (C)  Ohm
• (D)  None of the above

Answer

Submitted By :Ali Uppal

The Q of an LC circuit is given by _________________?

• (A)  2pfr x R
• (B)  R / 2pfrL
• (C)  2pfrL / R
• (D)  R2/2pfrL

Answer

Submitted By :Ali Uppal

In parallel resonance, the circuit impedance is_________________?

• (A)  C/LR
• (B)  R/LC
• (C)  CR/L
• (D)  L/CR

Answer

Submitted By :Ali Uppal

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

• (A)  Remains the same
• (B)  Increases
• (C)  Decreases
• (D)  Insufficient data

Answer

Submitted By :Ali Uppal