Your score
0 / 0
0 correct
0 wrong
0 skipped
25 questions
21
Conductivity
Moderate
+1.0
-0.25
Which one of the following is an important component of a transistor?
22
Conductivity
Moderate
+1.0
-0.25
Which of the following are semiconductors ? 1. Silicon 2. Quartz 3. Ceramics 4. Germanium Choose the correct answer from the following alternatives:
23
Conductivity
Moderate
+1.0
-0.25
Which of the following element is a semiconductor ?
24
Conductivity
Moderate
+1.0
-0.25
Which of the following elements is a semiconductor?
25
Conductivity
Moderate
+1.0
-0.25
The Government of India has totally banned the export of burnt coal (Jhama) because it contains recoverable amount of a metal/element which is used in transistors. Which one of the following is that element?