Rajkamal Sir (Engineers Platform) 📚📚

5. When an electron is removed from an atom, it becomes[SSC JE EE 2021]

4. The merging of a free electron and a hole is known as[SSC JE EE 2018]

3. Which one of the following has the least number of free electrons in it? [SSC JE EE 2021]

2. Which of the following is a trivalent element? [SSC JE EE 2021]

1. The number of valence electron in boron is_____[SSC JE EE 2018]

5. Which of the following element belongs to the same group of periodic tables as that of silicon and lead? [SSC JE EE 2018]

4. The germanium crystal behaves as an insulator at[SSC JE EE 2021]

3. Which one of the following material has lowest resistivity? [SSC JE EE 2021]

2. A p-type semiconductor is……………………

1. Semiconductor may be made n-type by adding donor impurity

5. A germanium atom contains . [SSC JE EE 2017]

4. The number of valence electrons of P and Si are respectively. [SSC JE EE 2021]

3. Epitaxial growth is best suited for growing……………. [SSC JE EE 2021]

2. Which of the following terms is NOT associated with diodes? [SSC JE EE 2021]