1. Source is a basic network element which supplies power to the networks.
a) True
b) False
Explanation: The basic network element which supplies energy to the networks is Source.
2. The dependent sources are of _____________ kinds.
a) 5
b) 2
c) 3
d) 4
Explanation: The dependent sources are of four kinds, depending on whether the control variable is voltage or current and the controlled source is a voltage source or current source. They are VCVS, VCCS, CCVS and CCCS.
3. The constant gm has dimension of ___________
a) Ampere per volt
b) Ampere
c) Volt
d) Volt per ampere
Explanation: Transconductance is the ratio of current to voltage. Hence, the constant gm has a dimension of ampere per volt or siemens (S).
4. In CCVS, voltage depends on the control current and the constant called __________
a) Transconductance
b) Transresistance
c) Current Gain
d) Voltage Gain
Explanation: In CCVS, voltage is directly proportional to the control current. The constant of proportionality is called Transresistance(r).
V = ri.
5. Every circuit is a network, but all networks are not circuits.
a) True
b) False
Explanation: The interconnection of two or more circuit elements is called a Network. If the network contains at least one closed path, it is called a Circuit.
6. Which of the following is not an example of a linear element?
a) Resistor
b) Thermistor
c) Inductor
d) Capacitor
Explanation: If the resistance, inductance or capacitance offered by an element does not change linearly with the change in applied voltage or circuit current, the element is termed as a linear element. Resistor, Inductor and Capacitor are examples of linear elements. Thermistor is an example of Non-Linear element.
7. Find the odd one out.
a) Resistor
b) Voltage-dependent resistor(VDR)
c) Temperature-dependent resistor(Thermistor)
d) Light-dependent resistor(LDR)
Explanation: A non-linear circuit element is one in which the current does not change linearly with the change in applied voltage. Examples of non-linear elements are VDR, thermistor and LDR. Hence resistor is the odd one.
8. Which of the following is an Active element?
a) Resistor
b) Inductor
c) Capacitor
d) OP-AMP
Explanation: OP-AMP is an active element because it can be used for the amplification or generation of signals. All the other circuit elements are passive elements.
9. A semiconductor diode is an ____________ element.
a) Bilateral
b) Unilateral
c) Active
d) Passive
Explanation: In semiconductor diode, current flows through the diode only in one direction. Hence, it is a unilateral element.
10. Example of distributed element is ___________
a) Resistor
b) Thermistor
c) Semiconductor diode
d) Transmission lines
Explanation: Distributed elements are those which are not separable for analysis purposes. Examples of distributed elements are transmission lines in which the resistance, inductance and capacitance are distributed along its length.