Materials And Components - Study Mode
[#161] The dielectric strength of gaseous dielectric depends on which of the following factors?
Correct Answer
(D) All of the above
[#162] Match List-I with List-II and select the correct answer using the options given below: List-I (Optical devices) List-II (Electrical/optical characteristics) a. GaAs 1. Emits monochromatic light of low intensity b. Solar cell 2. Consumers electrical power due to the incident light c. Photo Diode 3. Deliver power to a load d. LED 4. Emits monochromatic light of light intensity
Correct Answer
(C) a-4, b-3, c-2, d-1
[#163] A large value of the exchange interaction energy in a ferromagnetic material implies.
Correct Answer
(A) Large saturation magnetization
[#164] The resistance of a metallic wire would
Correct Answer
(B) decrease as the operating frequency increase
[#165] Which of the following represent the properties of carbon nanotubes? 1. High electrical conductivity 2. Very high tensile strength 3. High thermal conductivity 4. Low thermal expansion coefficient Select the correct answer using the options given below:
Correct Answer
(D) 1, 2, 3 and 4