railway RRB JE (CBT I + CBT II) Mock Test 2024 Electrical and Electronics Measurements Cathode Ray Oscilloscope Construction of CRO
Which of the following statements are incorrect
1. A CRO can be used for direct measurement of power.
2. The main part of CRO is CRT.
3. A CRO is used to measure phase displacement.
4. Time base generator is a part of CRT.
1
1 only
2
1 and 3 only
3
2, 3 and 4 only
4
1 and 4 only