# The Fourier series of the periodic function f(t) shown in the figure below has coefficients ak, bk. The series has

1.  Both cosine and sine terms but only for odd values of k

2.  Only cosine terms for odd values of k

3.  Only sine terms for odd values of k

4.  A constant and sine terms for odd values of k.

4

Only sine terms for odd values of k

Explanation :
No Explanation available for this question

# A periodic function f(t) has the exponential series the trignometric form of the series is

1.

2.

3.

4.

4

Explanation :
No Explanation available for this question

# The periodic function shown in the figure below

1.  Is even and has no half-wave symmetry

2.  Is odd and has no half-wave symmetry

3.  Is even and has half-wave symmetry

4.  Is odd and has half-wave symmetry.

4

Is odd and has half-wave symmetry.

Explanation :
No Explanation available for this question

# The Fourier series of the square wave given is the following figure where given ak,bk are not zero, is

1.  a0+a1 cos 0t+a2 cos 20t+…………

2.  b1 sin0t+b2 sin 20t+b3 sin 20t+…………

3.  a1 cos 0t +a3 cos 0t+a5 cos 50t+…………

4.  b1 sin0t+b3 sin 30t+b5 sin 50t+…………

4

a1 cos 0t +a3 cos 0t+a5 cos 50t+…………

Explanation :
No Explanation available for this question

# The square wave shown in the figure below is the voltage v(t) applied to a one ohm resistor. The amplitude andperiod is T. The Fourier series is given by the power absorbed by the resistor is

1.

2.

3.  A2

4.

4

Explanation :
No Explanation available for this question

# The square wave shown in the figure below is the voltage v(t) applied to a one ohm resistor. The amplitude andperiod is T. The Fourier series is given b If A=10, then root mean square value is

1.  10

2.

3.

4.

4

Explanation :
No Explanation available for this question

# Consider the voltage waveform shown in the figure. The equation for V(t) is

1.  u(t-1)+u(t-2)+u(t-3)

2.  u(t-1)+2u(t-2)+3u(t-3)

3.  u(t)+u(t-1)+u(t-2)+u(t-4)

4.  u(t-1)+u(t-2)+u(t-3)-3u(t-4).

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u(t-1)+u(t-2)+u(t-3)-3u(t-4).

Explanation :
No Explanation available for this question

# which of the following cannot be the Fourier series expansion of aperiodic signal

1.  x(t)=2cos t+3 cos 3t

2.  x(t)=2cos t+7 cos t

3.  x(t)=cos t+0.5

4.  x(t)=2cos 1.5t+ sin 3.5t.

4

x(t)=2cos t+7 cos t

Explanation :
No Explanation available for this question

# A periodic signal x(t) of period T0  is given by The d.c. component of x(t) is

1.

2.

3.

4.

4

Explanation :
No Explanation available for this question

# Fourier series of an odd periodic function, contains only

1.  Odd harmonics

2.  Even harmonics

3.  Cosine terms

4.  Sine terms.

4