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ECE · all questions

Materials And Components
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The electrical conductivity of the ferrite is

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The temperature coefficient of a resistance of a doped semiconductor is

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Match List-I with List-II and select the correct answer using the options given below the lists:
List-I (Type of Capacitor) List-II (Characteristic)
a. Paper 1. Low volume for large capacitance
b. Mica dielectric 2. Inexpensive
c. Ceramic dielectric 3. Suitable for RF bypass
d. Electrolytic 4. Long-term stability

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A piece of writing paper that is 10 cm wide, 15 cm long and 0.05 mm thick has a dielectric strength of 8 kV/mm. If it is placed between two copper plates and subjected to an increasing voltage, it will break down at

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High permittivity ceramic is used for capacitors of

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What is the ratio of thermal conductivity to electrical conductivity equal to?

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Strong and ductile materials

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The magnetic material in which permanent atomic magnetic dipoles have parallel orientation is termed as which one of the following?

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