CUET · PHYSICS · PYQ PAPER 2023
The average value of a.c. over a full cycle in an ac circuit is : (Given \( I_0 \) = Peak current)
- A zero
- B \( \frac{I_0}{\sqrt{2}} \)
- C \( I_0\sqrt{2} \)
- D \( \frac{2I_0}{\pi} \)
Answer & Solution
Correct Answer
(A) zero
Step-by-step Solution
Detailed explanation
In a full cycle, an alternating current flows in the positive direction for one half and an equal negative direction for the other. The net area under the \(I - t\) curve over one complete period is zero, making the mathematical average value zero. A) zero.
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from PHYSICS
- A transmitting station transmits radio waves of wavelength 300 m. The inductance of the coil required with a capacitor of capacity 1.0 \( \mu F \) in a resonant circuit will beCUET 2025 Hard
- If we double the number of turns of coil in a moving coil galvanometer, its voltage sensitivity will :CUET 2025 Hard
- If in a plano-convex lens, the radius of the convex surface is 10 cm and the focal length is 30 cm. Then the refractive index of the material will be :CUET 2023 Easy
- Which of the following will have the smallest radius of first orbit (n = 1)CUET 2023 Medium
- Two sources of light are said to be coherent when they emit light of
A. same wavelength
B. same amplitude
C. same intensity
D. constant phase difference
Choose the correct answer from the options given below:CUET 2023 Hard - When a capacitor is subjected to a D.C. source it takes small time internal to get fully charged up. During this small time interval there is no passage of charge through dielectric, yet we use a term - displacement current. This term is used because :CUET 2023 Hard
More PYQs from CUET
- Identify the correct statements from the following in the context of electromagnetic waves.
(A) X-rays are not electromagnetic waves.
(B) Electromagnetic waves are transverse in nature.
(C) Electromagnetic waves can not be polarised.
(D) Electromagnetic waves travel with the speed of light in vacuum.
Choose the correct answer from the options given below:CUET 2025 Medium - The power and aperture of lenses L1, L2 and L3 are given below in tabular format. Which pair of lenses should be chosen for constructing a microscope?
Lens Power Aperture L1 3D 8 cm L2 6D 1 cm L3 10D 1 cm CUET 2025 Hard - Nowadays, biofertilisers are available in the market. Select the correct statements regarding biofertilisers given below:
(A) Biofertilisers increase the soil fertility.
(B) Biofertilisers kill the pathogenic microbes
(C) Biofertilisers increase the iron content in the soil
(D) Biofertilisers increase the crop production.
(E) Excess use of biofertilisers causes water and soil pollution.
Choose the correct answer from the options given below:CUET 2023 Hard - Out of all isomers of \(\text{C}_4\text{H}_{11}\text{N}\), how many are primary amines?CUET 2023 Medium
- Reducing sugars among the following are :
(A) Maltose
(B) Sucrose
(C) Lactose
(D) Fructose
(E) Cellulose
Choose the correct answer from the options given below :CUET 2023 Medium - The solubility of a gas in a liquidCUET 2023 Easy