# Miscellaneous Examples on Fourier Series Online Exam Quiz

Miscellaneous Examples on Fourier Series GK Quiz. Question and Answers related to Miscellaneous Examples on Fourier Series. MCQ (Multiple Choice Questions with answers about Miscellaneous Examples on Fourier Series

### A CRO probe has an impedance of 500 k? in parallel with a capacitance of 10 pF. The probe is used to measure the voltage between P and Q as shown in the figure. The measured voltage will be?^

**Options**

A : 3.53 V

B : 3.47 V

C : 5.54 V

D : 7.00 V

### A periodic rectangular signal X (t) has the waveform as shown below. The frequency of the fifth harmonic of its spectrum is __^

**Options**

A : 40 Hz

B : 200 Hz

C : 250 Hz

D : 1250 Hz

### A periodic square wave is formed by rectangular pulses ranging from -1 to +1 and period = 2 units. The ratio of the power in the 7th harmonic to the power in the 5th harmonic for this waveform is equal to __

**Options**

A : 1

B : 0.5

C : 2

D : 2.5

### A signal e-at sin (?t) is the input to a real linear time invariant system. Given K and ? are constants, the output of the system will be of the form Ke-bt sin (vt + ?). The correct statement among the following is __

**Options**

A : b need not be equal to a but v must be equal to ?

B : v need not be equal to ? but b must be equal to a

C : b must be equal to a and v must be equal to ?

D : b need not be equal to a and v need not be equal to ?

### A signal g (t) = 10 sin (12?t) is ___

**Options**

A : A periodic signal with period 6 s

B : A periodic signal with period \frac{10}{6} s

C : A periodic signal with period \frac{1}{6} s

D : An aperiodic signal

### A useful property of the unit impulse 6 (t) is __

**Options**

A : 6 (at) = a 6 (t)

B : 6 (at) = 6 (t)

C : 6 (at) = \frac{1}{a} 6(t)

D : 6(at) = [6(t)]a

### A voltage having the waveform of a sine curve is applied across a capacitor. When the frequency of the voltage is increased, what happens to the current through the capacitor?

**Options**

A : Increases

B : Decreases

C : Remains same

D : Is zero

### For which of the following a Fourier series cannot be defined?

**Options**

A : 3 sin (25t)

B : 4 cos (20t + 3) + 2 sin (710t)

C : exp(-|t|) sin (25t)

D : 1

### From the symmetry and orthogonality of principal planes __

**Options**

A : both horizontal and vertical planes will be devoid of shear stress

B : both horizontal and vertical planes will have shear stress

C : only vertical plane has shear stress

D : only horizontal plane has shear stress

### If XY pane is considered to be ground surface and the z-axis as depth, then this condition is known as ___

**Options**

A : semi-infinite

B : infinite

C : finite

D : semi- finite

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