R4RIN – MCQs, Mock Tests | Electrical engineering Network Theory Set-1

Energy per unit charge is ____________

1. Power
2. Voltage
3. Current
4. Capacitance

✅ Correct Answer: 2

A conductor is said to have resistance of one ohm if a potential difference of one volt across its terminals causes a current of X ampere to flow through it. What will be the value of X?

1. 4
2. 2
3. 3
4. 1

✅ Correct Answer: 4

Resistance depends on the temperature of the conductor.

1. True
2. False
3.
4.

✅ Correct Answer: 1

Unit of inductance is ________

1. Weber
2. Henry
3. Farad
4. Tesla

✅ Correct Answer: 2

Inductance of an inductor is inversely proportional to its ___________

1. Number of turns
2. Area of cross section
3. Absolute permeability
4. Length

✅ Correct Answer: 4

The capacitance of a capacitor does not depend on the absolute permittivity of the medium between the plates.

1. True
2. False
3.
4.

✅ Correct Answer: 2

The response of a second order system is?

1. pulse
2. saw tooth
3. square
4. sinusoid

✅ Correct Answer: 4

If a function f(t) is periodic, then?

1. f(t) = f(t+T)
2. f(t) = f(t+T/2)
3. f(t) = f(t+T/4)
4. f(t) = f(t+T/8)

✅ Correct Answer: 1

The period of a function is measured as?

1. zero crossing of one cycle to zero crossing of next cycle
2. positive peak of one cycle to positive peak of next cycle
3. negative peak of one cycle to negative peak of next cycle
4. all of the mentioned

✅ Correct Answer: 4

The number of cycles a wave completes in one second is called?

1. time period
2. frequency
3. energy
4. wavelength

✅ Correct Answer: 2

The period of a sine wave is 40ms. What is the frequency?

1. 25
2. 50
3. 75
4. 100

✅ Correct Answer: 1

The frequency of a sine wave is 30Hz. What is its period?

1. 3333ms
2. 333.3ms
3. 33.33ms
4. 3.333ms

✅ Correct Answer: 3

A sine wave completes quarter cycle in ____ radians.

1. 2π
2. π
3. π/2
4. π/4

✅ Correct Answer: 3

A sine wave completes full cycle in ____ radians.

1. π
2. 2π
3. π/4
4. π/2

✅ Correct Answer: 2

The value of inductance reactance is?

1. R
2. ωL
3. 1/ωL
4. ωC

✅ Correct Answer: 2

The impedance value of a pure capacitor is?

1. ωC
2. 1/ ωC
3. ωL
4. R

✅ Correct Answer: 2

The value of the sine wave at some particular instant is called?

1. peak value
2. peak to peak value
3. instantaneous value
4. average value

✅ Correct Answer: 3

The maximum value of the wave during a positive half cycle or maximum value of the wave during negative cycle is called?

1. instantaneous value
2. peak value
3. peak to peak value
4. average value

✅ Correct Answer: 2

The total area under the complete curve divided by the distance of the curve is called?

1. peak to peak value
2. RMS value
3. average value
4. effective value

✅ Correct Answer: 3

The value from positive to negative peak of the sine wave is called?

1. effective value
2. average value
3. peak value
4. peak to peak value

✅ Correct Answer: 4

A wire is carrying a direct current of 20A and a sinusoidal alternating current of peak value 20A. Find the rms value of the resultant current.

1. 24
2. 24.5
3. 25
4. 25.5

✅ Correct Answer: 2

The peak factor of the sinusoidal waveform is?

1. 4
2. 2
3. 1.414
4. 8

✅ Correct Answer: 3

The form factor of the sinusoidal waveform is?

1. 1.11
2. 2.22
3. 3.33
4. 4.44

✅ Correct Answer: 1

Kirchhoff’s voltage law is based on principle of conservation of ___________

1. energy
2. momentum
3. mass
4. charge

✅ Correct Answer: 1

In a circuit with more number of loops, which law can be best suited for the analysis?

1. KCL
2. Ohm’s law
3. KVL
4. None of the mentioned

✅ Correct Answer: 3

Kirchhoff’s Current law is based on the law of conservation of ___________

1. energy
2. momentum
3. mass
4. charge

✅ Correct Answer: 4

The current law represents a mathematical statement of fact that ___________

1. voltage cannot accumulate at node
2. charge cannot accumulate at node
3. charge at the node is infinite
4. none of the mentioned

✅ Correct Answer: 2

Kirchhoff’s current law is applied at ___________

1. loops
2. nodes
3. both loop and node
4. none of the mentioned

✅ Correct Answer: 2

Determine the current if a 20 coulomb charge passes a point in 0.25 seconds.

1. 10 A
2. 20 A
3. 2 A
4. 80 A

✅ Correct Answer: 4

Resistance of a wire is yΩ. The wire is stretched to triple its length, then the resistance becomes ___________

1. y/3
2. 3y
3. 6y
4. y/6

✅ Correct Answer: 2

An electric current of 10 A is the same as ___________

1. 10 J/C
2. 10 V/C
3. 10C/sec
4. 10 W/sec

✅ Correct Answer: 3

Consider a circuit with two unequal resistances in parallel, then ___________

1. large current flows in large resistor
2. current is same in both
3. potential difference across each is same
4. smaller resistance has smaller conductance

✅ Correct Answer: 3

In which of the following cases is Ohm’s law not applicable?

1. Electrolytes
2. Arc lamps
3. Insulators
4. Vacuum ratio values

✅ Correct Answer: 3

A copper wire of length l and diameter d has potential difference V applied at its two ends. The drift velocity is V. If the diameter of wire is made d/4, then drift velocity becomes ___________

1. V/16
2. 16V
3. V
4. V/4

✅ Correct Answer: 2

Which of the following bulbs will have high resistance?

1. 220V, 60W
2. 220V,100W
3. 115V,60W
4. 115V,100 W

✅ Correct Answer: 1

Ohm’s law is not applicable to ___________

1. dc circuits
2. high currents
3. small resistors
4. semi-conductors

✅ Correct Answer: 4

Conductance is expressed in terms of ___________

1. mho
2. mho/m
3. ohm/m
4. m/ohm

✅ Correct Answer: 1

Resistivity of a wire depends on ___________

1. length of wire
2. cross section area
3. material
4. all of the mentioned

✅ Correct Answer: 3

Source is a basic network element which supplies power to the networks.

1. True
2. False
3.
4.

✅ Correct Answer: 2

The dependent sources are of _____________ kinds.

1. 5
2. 2
3. 3
4. 4

✅ Correct Answer: 4

In CCVS, voltage depends on the control current and the constant called __________

1. Transconductance
2. Transresistance
3. Current Gain
4. Voltage Gain

✅ Correct Answer: 2

Every circuit is a network, but all networks are not circuits.

1. True
2. False
3.
4.

✅ Correct Answer: 1

Which of the following is not an example of a linear element?

1. Resistor
2. Thermistor
3. Inductor
4. Capacitor

✅ Correct Answer: 2

Which of the following is an Active element?

1. Resistor
2. Inductor
3. Capacitor
4. OP-AMP

✅ Correct Answer: 3

A semiconductor diode is an ____________ element.

1. Bilateral
2. Unilateral
3. Active
4. Passive

✅ Correct Answer: 2

Example of distributed element is ___________

1. Resistor
2. Thermistor
3. Semiconductor diode
4. Transmission lines

✅ Correct Answer: 4

Potential difference in electrical terminology is known as?

1. Voltage
2. Current
3. Resistance
4. Conductance

✅ Correct Answer: 1

The circuit in which current has a complete path to flow is called ______ circuit.

1. short
2. open
3. closed
4. open loop

✅ Correct Answer: 3

If the voltage-current characteristics is a straight line through the origin, then the element is said to be?

1. Linear element
2. Non-linear element
3. Unilateral element
4. Bilateral element

✅ Correct Answer: 1

How many types of dependent or controlled sources are there?

1. 1
2. 2
3. 3
4. 4

✅ Correct Answer: 4