- Electronic Devices and Circuits - Section 1
- Electronic Devices and Circuits - Section 2
- Electronic Devices and Circuits - Section 3
- Electronic Devices and Circuits - Section 4
- Electronic Devices and Circuits - Section 5
- Electronic Devices and Circuits - Section 6
- Electronic Devices and Circuits - Section 7
- Electronic Devices and Circuits - Section 8
- Electronic Devices and Circuits - Section 9
- Electronic Devices and Circuits - Section 10
- Electronic Devices and Circuits - Section 11
- Electronic Devices and Circuits - Section 12
- Electronic Devices and Circuits - Section 13
- Electronic Devices and Circuits - Section 14
- Electronic Devices and Circuits - Section 15
- Electronic Devices and Circuits - Section 16
Electronic Devices and Circuits
A 30 kHz
B 15 kHz
C 5 kHz
D 20 kHz
ANS:C - 5 kHz
For inverter grade SCR, typical turn off time (toff) is 5 to 50 μsec while 50 to 100 μsec for converter grade SCR.
Hence supply frequency of 5 kHz will turn off the SCR by voltage reversal because  = 200 μsec.
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