Question:
The signal $x(t) = A\cos(\omega t + \phi)$ is:
The signal $x(t) = A\cos(\omega t + \phi)$ is:
Show Hint
Periodic signals → Power signals.
Updated On: May 20, 2026
- An energy signal
- A power signal
- Both energy and power signal
- Neither
Show Solution
Verified By Collegedunia
The Correct Option is B
Solution and Explanation
Concept:
• Energy signal → finite energy
• Power signal → finite power but infinite energy
Step 1: Compute energy Sinusoidal signal exists for infinite time → energy infinite.
Step 2: Compute power \[ P = \frac{A^2}{2} \] Finite value. \[ \therefore \text{Power signal} \]
• Energy signal → finite energy
• Power signal → finite power but infinite energy
Step 1: Compute energy Sinusoidal signal exists for infinite time → energy infinite.
Step 2: Compute power \[ P = \frac{A^2}{2} \] Finite value. \[ \therefore \text{Power signal} \]
Was this answer helpful?
0
0
Top CUET PG Electronics and Communication Engineering Questions
- What is the Thevenin equivalent voltage across a load in an open-circuited network?
- Which semiconductor device is primarily used as a voltage regulator?
- Calculate the Nyquist rate for a signal with a maximum frequency component of 5 kHz.
- How many flip-flops are required to build a MOD-16 counter?
- Which type of power amplifier has the highest theoretical efficiency?
View More Questions
Top CUET PG Signals and Systems Questions
- What is the Z-transform of a unit impulse function $\delta[n]$?
Arrange the steps of sampling and processing a continuous-time signal:
- The Nyquist sampling theorem states that for a signal with maximum frequency $f_m$, the sampling frequency must be:
- Consider the statements given below: A. Discrete-time LTI system with impulse response $h[n] = \left(\frac{1}{2}\right)^n u[n-1]$ is causal B. Response $(-2)^n u[n]$ may or may not be stable C. Response $(-2)^n u[n]$ is unstable D. Response $(-2)^n u[-n-1]$ is unstable
Top CUET PG Questions
- Given below are two statements:
Statement I: For Plato the meaning of the word 'Justice' is basically a conception in the mind only.
Statement II: For Plato the meaning of the word 'Justice' is fixed, mind-independently
In the light of the above statements, choose the correct answer from the options given below: - What is the electron count of OS6CO182-?
- XeF4 hydrolysis gives A + B, HF, and Oxygen. Find A and B
- What is more basic in pyrol and pyridine?
- Hydrolysis of Al2C3, Be2?
View More Questions