CIRCUIT THEORY

Which of the following statement is incorrect?

• The greater the value of quality factor the narrower will be the bandwidth.

• The resonant frequency of a series resonant circuit is equal to the geometric mean of half-power frequencies (f_1, f₂).

• The bandwidth of a series resonant circuit is the range of the frequencies for which the circuit current is equal to or greater than 63.7% of the circuit current of resonance.

• The bandwidth of a series resonant circuit is the range of the frequencies for which the circuit current is equal to or greater than 70.7% of the circuit current of resonance.

Three resistors of 6Ω are connected in parallel. So, what will be the equivalent resistance?

• 9Ω

• 6Ω

• 18Ω

• 2Ω

Ohm's law is applicable to

• Semi - conductors

• Vacuum tubes

• Electrolytes

• None of these

Which of the following is the correct relation?

• Y₁₁ = h₁₁ / h₁₂

• Y₁₁ = h₁₁

• Y₁₁ = 1 / h₁₁

• Y₁₁ = h₁₂

In two - port network, what are the other names of Z parameters?

• Short circuit admittance parameter

• Open circuit Impedance parameter

• Open circuit admittance parameter

• Short circuit impedance parameter

Which is used to measure the electric current?

• Cell

• Ammeter

• Battery

• Galvanometer

The symbol of Q refers to the

• Power quotient

• Resonance quotient

• Quality factor

• Qualification test

In thevenin's theorem, the voltage is equal to

• Open circuit voltage

• Open circuit current

• Short circuit current

• Short circuit voltage

Mesh analysis is suitable for

• Voltage sources

• Current sources

• Unilateral elements

• Complex elements

The basic laws for electric circuit is

• Newtons laws

• Einstein's theory

• Kirchoff's laws

• Faradays laws